1 September 2025 - Added tech: Compound bow - Added tech: Liquid crystals - Added tech: Onager - Added tech: Ballista - Added tech: Composite bow - Added tech: Sling - Added connection: Sword -> Shield - Added connection: Hafted spear -> Shield - Added connection: Bow and arrow -> Shield - Added connection: Hafted axe -> Shield - Added connection: Sling -> Shield - Added connection: Bow and arrow -> Composite bow - Added connection: Hafting -> Bow and arrow - Added connection: Composite bow -> Compound bow - Added connection: Pulley -> Compound bow - Added connection: Liquid crystals -> Liquid-crystal display - Added connection: Tin bronze -> Crossbow (China) - Added connection: Crossbow (Greece) -> Ballista - Added connection: Bow and arrow -> Crossbow (China) - Added connection: Composite bow -> Crossbow (Greece) - Added connection: Ballista -> Onager - Added connection: Sling -> Traction trebuchet 30 August 2025 - Added tech: Mustard gas - Added connection: Radium -> Smoke detector - Added connection: Vapor-compression refrigeration system -> Hampson–Linde air liquefaction - Added connection: Triode -> Smoke detector - Added connection: Cigarette -> Smoke detector - Added connection: Mustard gas -> Smoke detector 29 August 2025 - Added tech: Smoke detector - Added tech: Alkaline fuel cell - Added tech: Dishwasher - Added connection: Hydrogen -> Fuel cell - Added connection: Oxygen (Scheele–Priestley) -> Fuel cell - Added connection: Sulfuric acid -> Fuel cell - Added connection: Voltaic pile -> Fuel cell - Added connection: Fuel cell -> Alkaline fuel cell - Added connection: Alkaline fuel cell -> Reusable spacecraft - Added connection: Porcelain -> Dishwasher 28 August 2025 - Added tech: Chromic acid cell - Added connection: Daniell cell -> Rechargeable battery - Added connection: Sulfuric acid -> Rechargeable battery - Added connection: Linen -> Rechargeable battery - Added connection: Daniell cell -> Chromic acid cell - Added connection: Chromic acid cell -> Electric pen - Added connection: Sulfuric acid -> Chromic acid cell 26 August 2025 - Added connection: Saddle -> Toe stirrup - Added connection: Saddle -> Stirrup - Added connection: Lime -> Limelight - Added connection: Sulfur -> Sulfur matches 25 August 2025 - Added tech: Titanium white - Added tech: Zinc white - Added connection: Titanium -> Titanium white - Added connection: Tin extraction -> Printing press - Added connection: Lead smelting -> Printing press - Added connection: Antimony -> Printing press - Added connection: Brass -> Zinc white - Added connection: Sulfuric acid -> Titanium white 24 August 2025 - Added tech: Disappearing-filament pyrometer - Added tech: Pyrometer - Added tech: Crucible - Added connection: Offset printing -> Phototypesetting - Added connection: Crucible -> Crucible steel - Added connection: Pottery -> Crucible - Added connection: Control of fire -> Lead smelting - Added connection: Crucible -> Arsenical bronze - Added connection: Crucible -> Brass - Added connection: Pyrometer -> Disappearing-filament pyrometer 23 August 2025 - Added tech: Phototypesetting - Added tech: Hot metal typesetting - Added connection: Hot metal typesetting -> Phototypesetting - Added connection: Movable type -> Hot metal typesetting 22 August 2025 - Added tech: Nomogram - Added connection: Water wheel (Greece) -> Fulling mill 21 August 2025 - Added tech: Video display controller - Added connection: Arcade video game -> Video display controller - Added connection: Keplerian refracting telescope -> Achromatic lens and achromatic telescope - Added connection: Video display controller -> GPU - Added connection: Home computer -> Video display controller - Added connection: Writing (China) -> Video display controller - Added connection: CMOS -> GPU 20 August 2025 - Added tech: Acrylic paint - Added tech: Cadmium pigments - Added tech: Hot-dip galvanization - Added tech: Cadmium - Added connection: Nickel -> Nickel–cadmium battery - Added connection: Nickel–cadmium battery -> Nickel–iron battery - Added connection: Zinc smelting -> Hot-dip galvanization - Added connection: Nickel -> Nickel–iron battery - Added connection: Cadmium -> Cadmium pigments - Added connection: Cadmium -> Nickel–cadmium battery - Added connection: Iron smelting and wrought iron -> Corrugated iron - Added connection: Iron smelting and wrought iron -> Hot-dip galvanization 19 August 2025 - Added tech: Spirit duplicator - Added tech: Hectograph - Added tech: Hydrogen peroxide - Added tech: Cobalt blue - Added tech: Lime mortar - Added tech: Lime - Added connection: Coal tar -> Aniline - Added connection: Aniline -> Spirit duplicator - Added connection: Aniline -> Hectograph - Added connection: Tin extraction -> Cerulean blue - Added connection: Cobalt -> Cobalt blue - Added connection: Blue and white pottery -> Cobalt blue - Added connection: Kelvin scale and absolute zero -> International system of units - Added connection: Lime -> Lime mortar - Added connection: Lime -> Synthetic ultramarine - Added connection: Construction mortar -> Lime mortar - Added connection: Concrete -> Waterproof concrete 18 August 2025 - Added tech: Kermes dye - Added tech: Vermilion - Added connection: Vermilion -> Mercury - Added connection: Pigments -> Vermilion - Added connection: Pigments -> Indigo dye - Added connection: Pigments -> Verdigris - Added connection: Pigments -> White lead - Added connection: Pigments -> Kermes dye - Added connection: Kermes dye -> Cochineal dye - Added connection: Pigments -> Cochineal dye 17 August 2025 - Added tech: Cerulean blue - Added tech: Smalt - Added tech: Natron - Added tech: Egyptian faience - Added connection: Copper smelting -> Egyptian blue - Added connection: Natron -> Egyptian blue - Added connection: Natron -> Proto-soap - Added connection: Natron -> Glass - Added connection: Smalt -> Blue and white pottery - Added connection: Egyptian faience -> Smalt - Added connection: Smalt -> Cobalt - Added connection: Cobalt -> Samarium–cobalt magnet - Added connection: Cobalt -> Cerulean blue - Added connection: Egyptian faience -> Glass - Added connection: Copper smelting -> Egyptian faience 16 August 2025 - Added tech: YInMn blue - Added tech: Maya blue - Added connection: Cotton (New World) -> Indigo dye - Added connection: Indigo dye -> Maya blue 15 August 2025 - Added tech: Smartwatch - Added tech: Digital electronic watch - Added connection: Telephone -> Moving-coil loudspeaker - Added connection: Digital electronic watch -> Smartwatch - Added connection: Wristwatch -> Digital electronic watch - Added connection: LED display -> Digital electronic watch - Added connection: Liquid-crystal display -> Smartwatch - Added connection: Home computer -> Smartwatch 14 August 2025 - Added tech: Decaffeinated coffee - Added tech: Tofu - Added connection: Coffee -> Decaffeinated coffee - Added connection: Benzene -> Decaffeinated coffee - Added connection: Caffeine -> Decaffeinated coffee - Added connection: Domestication of wheat -> Gristmill - Added connection: Fragmentation bomb -> Bombsight - Added connection: Domestication of soybeans -> Tofu 13 August 2025 - Added connection: Electromagnet -> Moving-coil loudspeaker - Added connection: Moving-coil loudspeaker -> Noise-cancelling headphones 12 August 2025 - Added tech: Facial recognition system - Added tech: Moving-coil loudspeaker - Added tech: Cultured pearl - Added connection: Oyster farming -> Cultured pearl 11 August 2025 - Added tech: General-purpose computing on GPU - Added tech: GPU - Added connection: GPU -> General-purpose computing on GPU - Added connection: General-purpose computing on GPU -> AlexNet - Added connection: General-purpose computing on GPU -> Transformer (machine learning) - Added connection: General-purpose computing on GPU -> Generative adversarial network 9 August 2025 - Added tech: Turbocharger - Added tech: Foam extinguisher - Added tech: Firefighting foam - Added tech: Vanadium - Added tech: Galvanism - Added tech: Methane - Added tech: Nickel silver - Added tech: Blue and white pottery - Added tech: Pewter - Added connection: Copper smelting -> Voltaic pile - Added connection: Zinc smelting -> Voltaic pile - Added connection: Galvanism -> Voltaic pile - Added connection: Stamp seal -> Woodblock printing - Added connection: Writing (China) -> Woodblock printing - Added connection: Radial engine -> Turbocharger - Added connection: Weaving -> Cotton (New World) - Added connection: Weaving -> Cotton (Old World) - Added connection: Modern oil well -> Firefighting foam - Added connection: Firefighting foam -> Foam extinguisher - Added connection: Sodium bicarbonate -> Firefighting foam - Added connection: Cupronickel -> Nickel silver - Added connection: Porcelain -> Blue and white pottery - Added connection: Blue and white pottery -> Cobalt - Added connection: Tin extraction -> Pewter - Added connection: Lead smelting -> Pewter 7 August 2025 - Added tech: Scanning electron microscope - Added connection: Electron microscope -> Scanning electron microscope 5 August 2025 - Added tech: K'un-lun po - Added connection: Tanja sail -> K'un-lun po 4 August 2025 - Added tech: Quinine - Added tech: Strychnine - Added tech: Jesuit's bark - Added connection: Quinine -> Synthetic dye - Added connection: Jesuit's bark -> Quinine - Added connection: Seaweed farming -> Agar 2 August 2025 - Added tech: Banjo - Added tech: Acetone - Added tech: White lead - Added tech: Verdigris - Added tech: Vinegar - Added connection: Vinegar -> White lead - Added connection: Vinegar -> Verdigris - Added connection: Copper -> Verdigris - Added connection: Lead smelting -> White lead - Added connection: Joule–Thomson effect -> Liquid oxygen 1 August 2025 - Added tech: Malaria vaccine - Added tech: DDT insecticide - Added tech: DDT - Added tech: Coal tar - Added connection: DDT -> DDT insecticide - Added connection: Pine tar -> Coal tar - Added connection: Coal mining -> Coal tar - Added connection: Coke (fuel) -> Silicon carbide - Added connection: Silicon -> Silicone 31 July 2025 - Added connection: Coal gas and gas lighting -> Gas mantle - Added connection: Radio waves and spark-gap transmitter -> Resonant transformer - Added connection: Alternating current -> Resonant transformer 27 July 2025 - Added tech: Oriented strand board - Added tech: Particle board - Added tech: Harpoon cannon - Added tech: Sperm oil and spermaceti candle - Added tech: Sperm whaling - Added tech: Whale oil - Added tech: Keel - Added tech: Shield - Added tech: Whaling - Added connection: Sperm oil and spermaceti candle -> Petroleum jelly - Added connection: Harpoon -> Whaling - Added connection: Boat -> Whaling - Added connection: Phoenician joint -> Keel - Added connection: Keel -> Cog - Added connection: Whaling -> Whale oil - Added connection: Cannon -> Harpoon cannon - Added connection: Harpoon -> Harpoon cannon - Added connection: Whaling -> Harpoon cannon - Added connection: Whaling -> Sperm whaling - Added connection: Sperm whaling -> Sperm oil and spermaceti candle - Added connection: Whale oil -> Sperm oil and spermaceti candle - Added connection: Candle -> Sperm oil and spermaceti candle 26 July 2025 - v1.0.4: Subfields 24 July 2025 - v1.0.3: Info icons for connection details 21 July 2025 - Added tech: Alexanderson alternator - Added tech: Arc converter - Added tech: Singing arc - Added connection: Leyden jar -> Radio waves and spark-gap transmitter - Added connection: Arc lamp -> Singing arc - Added connection: Singing arc -> Arc converter - Added connection: Wireless telegraphy -> Arc converter - Added connection: Moving-coil oscillograph -> Singing arc - Added connection: Wireless telegraphy -> Alexanderson alternator - Added connection: Amplitude modulation -> Alexanderson alternator - Added connection: Amplitude modulation -> Arc converter 19 July 2025 - Added tech: Combination lock - Added tech: Padlock - Added connection: Egyptian wooden pin tumbler lock -> Combination lock - Added connection: Egyptian wooden pin tumbler lock -> Padlock 17 July 2025 - Added tech: Fuel pump - Added connection: Kerosene lamp -> Fuel pump 16 July 2025 - Added tech: Bread - Added connection: Bread -> Leavened bread - Added connection: Control of fire -> Bread - Added connection: Mortar and pestle -> Bread 15 July 2025 - Added tech: Gyro gunsight - Added tech: Reflector sight - Added tech: Artificial horizon - Added tech: Telescopic sight - Added connection: Slide rule -> Vector bombsight - Added connection: Geiger counter -> Radiocarbon dating - Added connection: Keplerian refracting telescope -> Telescopic sight - Added connection: Telescopic sight -> Reflector sight - Added connection: Reflector sight -> Gyro gunsight - Added connection: Gyroscope -> Gyro gunsight - Added connection: Gyroscope -> Tachometric bombsight 13 July 2025 - Added connection: Fire-control system -> Automated anti-aircraft fire-control system 12 July 2025 - Added tech: Interstellar probe - Added tech: Tachometric bombsight - Added tech: Vector bombsight - Added tech: Kelvite sounding machine - Added tech: Sounding machine - Added tech: Depth sounding - Added connection: Airplane -> Bombsight - Added connection: Bombsight -> Vector bombsight - Added connection: Vector bombsight -> Tachometric bombsight - Added connection: Ball-and-disk integrator -> Tachometric bombsight - Added connection: Tide-predicting machine -> Ball-and-disk integrator - Added connection: Piano -> Kelvite sounding machine - Added connection: Submarine communication cable -> Kelvite sounding machine - Added connection: Depth sounding -> Sounding machine - Added connection: Sounding machine -> Kelvite sounding machine 10 July 2025 - Added tech: Bombsight 9 July 2025 - Added tech: Fire-control system - Added tech: Dumaresq - Added tech: Ball-and-disk integrator - Added tech: Tide-predicting machine - Added tech: Hydrochloric acid - Added tech: Aqua regia - Added tech: Ammonium chloride - Added connection: Ammonium chloride -> Aqua regia - Added connection: Nitric acid -> Aqua regia - Added connection: Ammonium chloride -> Hydrochloric acid - Added connection: Sulfuric acid -> Hydrochloric acid - Added connection: Ball-and-disk integrator -> Fire-control system 6 July 2025 - Added tech: Automated anti-aircraft fire-control system - Added tech: Box kite - Added tech: Kite experiment - Added tech: Kite - Added connection: Kite -> Box kite - Added connection: Kite -> Kite experiment - Added connection: Kite experiment -> Lightning rod - Added connection: Leyden jar -> Kite experiment - Added connection: Box kite -> Airplane - Added connection: Papermaking -> Kite - Added connection: Motorcycle -> Rotary engine - Added connection: Automated anti-aircraft fire-control system -> Computer-generated imagery 5 July 2025 - Added tech: Proportional counter - Added tech: Geiger counter - Added tech: Radial engine - Added tech: Rotary engine - Added connection: Radioactivity -> Geiger counter - Added connection: Geiger counter -> Proportional counter - Added connection: Tin can -> Hovercraft - Added connection: Handheld hair dryer -> Hovercraft - Added connection: Four-stroke engine -> Rotary engine - Added connection: Rotary engine -> Radial engine - Added connection: Radial engine -> Hovercraft - Added connection: Gasoline as fuel -> Airplane 4 July 2025 - Added tech: Leaded gasoline - Added tech: Gasoline as fuel - Added connection: Lead smelting -> Rechargeable battery - Added connection: Coal gas and gas lighting -> Four-stroke engine - Added connection: Kerosene -> Diesel engine - Added connection: Kerosene -> Gasoline as fuel - Added connection: Gasoline as fuel -> Leaded gasoline - Added connection: Gasoline as fuel -> Automobile - Added connection: Gasoline as fuel -> Shukhov cracking process - Added connection: Four-stroke engine -> Gasoline as fuel - Added connection: Gasoline as fuel -> Liquid-propellant rocket 1 July 2025 - Added tech: Alum - Added connection: Alum -> Aluminium 29 June 2025 - Added tech: Measles vaccine - Added connection: Polio vaccine -> Measles vaccine 27 June 2025 - Added tech: Virtual assistant - Added tech: Stealth aircraft - Added connection: Multi-touch smartphone -> Virtual assistant - Added connection: Speech recognition software -> Virtual assistant - Added connection: Long short-term memory -> Virtual assistant - Added connection: Convolutional neural network -> Virtual assistant - Added connection: Virtual assistant -> Smart speaker - Added connection: Surface-to-air missile -> Stealth aircraft - Added connection: Supercomputer -> Stealth aircraft - Added connection: Radar -> Stealth aircraft - Added connection: Fighter aircraft -> Stealth aircraft - Added connection: Statistical language model -> Speech recognition software 25 June 2025 - Added tech: Portable operating system - Added connection: Integrated circuit computer -> Computer mouse - Added connection: Operating system -> Portable operating system - Added connection: Time-sharing -> Portable operating system - Added connection: Lidar -> Robotaxi 24 June 2025 - Added tech: Computer mouse - Added tech: Baking powder - Added tech: Sodium bicarbonate - Added tech: Cream of tartar - Added connection: Cream of tartar -> Baking powder - Added connection: Sodium bicarbonate -> Baking powder 20 June 2025 - Added tech: Phage therapy - Added tech: Bacteriophages - Added tech: Benzene - Added connection: Discovery of viruses -> Bacteriophages - Added connection: Bacteriophages -> Phage display - Added connection: Bacteriophages -> Phage therapy - Added connection: Smallpox vaccine -> Bacteriophages - Added connection: Chamberland water filter -> Bacteriophages - Added connection: Neon -> Isotopes - Added connection: Public gas lighting -> Benzene 18 June 2025 - Added tech: Operating system - Added connection: Stored-program computer -> Operating system 16 June 2025 - Added tech: Electroconvulsive therapy - Added tech: Convulsive therapy - Added tech: Tuberculosis vaccine - Added connection: Smallpox vaccine -> Tuberculosis vaccine - Added connection: Convulsive therapy -> Electroconvulsive therapy 14 June 2025 - Added tech: Timpani - Added connection: Drum -> Timpani 13 June 2025 - Added tech: Palm-leaf manuscript - Added tech: Birch bark manuscript - Added tech: Ivory carving 12 June 2025 - Added tech: Antivirus software - Added tech: Philo's thermoscope - Added connection: Home computer -> Antivirus software - Added connection: Philo's thermoscope -> Thermoscope 11 June 2025 - Added tech: Autoclaved aerated concrete - Added tech: Discovery of viruses - Added tech: Chamberland water filter - Added tech: Autoclave - Added connection: Flute -> Western concert flute - Added connection: Modern Portland cement -> Autoclaved aerated concrete - Added connection: Pressure cooker -> Autoclave - Added connection: Autoclave -> Autoclaved aerated concrete - Added connection: Chamberland water filter -> Discovery of viruses - Added connection: Agar plate -> Discovery of viruses - Added connection: Tobacco -> Discovery of viruses 10 June 2025 - Added tech: Photonic crystal - Added tech: Genetic code - Added tech: Messenger RNA - Added tech: Petroleum jelly - Added connection: Photonic crystal -> Photonic-crystal fiber - Added connection: Kerosene -> Petroleum jelly - Added connection: Petroleum as fuel -> Petroleum jelly - Added connection: Messenger RNA -> mRNA vaccine - Added connection: DNA as the carrier of information -> Structure of DNA - Added connection: Structure of DNA -> Genetic code - Added connection: Central dogma of molecular biology -> Genetic code - Added connection: Central dogma of molecular biology -> Messenger RNA 9 June 2025 - v1.0.2: Display settings - Added tech: Bass guitar - Added tech: Lap steel guitar - Added tech: Double bass - Added tech: Marimba - Added connection: Marimba -> Marimbaphone - Added connection: Xylophone -> Marimba - Added connection: Double bass -> Bass guitar - Added connection: Modern guitar -> Lap steel guitar - Added connection: Lap steel guitar -> Electric guitar - Added connection: Lap steel guitar -> Bass guitar 8 June 2025 - Added tech: Cyanoacrylate - Added tech: Zoom lens - Added tech: Vibraphone - Added tech: Marimbaphone - Added tech: Corrugated fiberboard - Added tech: Trumpet with pistons - Added tech: Tuba - Added tech: Repeating circle - Added tech: Reflecting circle - Added tech: Cardboard - Added tech: Oboe - Added tech: Bassoon - Added tech: Dulcian - Added tech: Trombone - Added tech: Clavichord - Added tech: Shawm - Added tech: Buisine - Added connection: Papermaking -> Cardboard - Added connection: Cardboard -> Corrugated fiberboard - Added connection: Corrugated fiberboard -> Pre-cut cardboard box - Added connection: Movie camera -> Zoom lens - Added connection: Reflecting circle -> Repeating circle - Added connection: Telescope -> Reflecting circle - Added connection: Octant -> Reflecting circle - Added connection: Trumpet -> Buisine - Added connection: Buisine -> Trombone - Added connection: Marimbaphone -> Vibraphone - Added connection: Buisine -> Trumpet with pistons - Added connection: Buisine -> Tuba - Added connection: Pipe organ -> Clavichord - Added connection: Shawm -> Oboe - Added connection: Dulcian -> Bassoon - Added connection: Shawm -> Dulcian - Added connection: Aulos -> Shawm - Added connection: Violin, viola, and cello -> Double bass - Added connection: Viola da gamba -> Double bass 7 June 2025 - Added tech: Quantum annealing - Added tech: Transmon - Added tech: Charge qubit - Added tech: Flux qubit - Added tech: Mammal cloning - Added tech: Artificial heart - Added tech: SQUID - Added tech: Dilution refrigerator - Added tech: Josephson junction - Added tech: Animal cloning from adult cells - Added tech: Animal cloning - Added tech: Kroll process - Added tech: Helium-3 - Added tech: Tritium - Added tech: Nuclear fusion - Added tech: Deuterium - Added tech: Electric chainsaw - Added tech: Somatic cell nuclear transfer - Added tech: Hunter process - Added tech: Indium - Added tech: Bayonet - Added connection: Mammal cloning -> Induced pluripotent stem cell - Added connection: Titanium -> Hunter process - Added connection: Magnesium -> Kroll process - Added connection: Hunter process -> Kroll process - Added connection: Kroll process -> Lithium battery pacemaker - Added connection: Josephson junction -> SQUID - Added connection: Superconductors -> Josephson junction - Added connection: Magnetometer -> SQUID - Added connection: Quantum tunneling -> Josephson junction - Added connection: Somatic cell nuclear transfer -> Animal cloning - Added connection: Animal cloning from adult cells -> Mammal cloning - Added connection: Animal cloning -> Animal cloning from adult cells - Added connection: Frog pregnancy test -> Animal cloning from adult cells - Added connection: Transmon -> Quantum computer - Added connection: Dilution refrigerator -> Quantum computer - Added connection: Charge qubit -> Transmon - Added connection: Josephson junction -> Charge qubit - Added connection: Cyclotron -> Nuclear fusion - Added connection: Quantum tunneling -> Nuclear fusion - Added connection: Nuclear fusion -> Helium-3 - Added connection: Nuclear fusion -> Hydrogen bomb - Added connection: Helium-3 -> Dilution refrigerator - Added connection: Isotopes -> Helium-3 - Added connection: Isotopes -> Deuterium - Added connection: Deuterium -> Nuclear fusion - Added connection: Nuclear fusion -> Tokamak - Added connection: Hampson–Linde air liquefaction -> Deuterium - Added connection: Isotopes -> Tritium - Added connection: Mass spectrometer -> Deuterium - Added connection: Quantum tunneling -> Quantum annealing - Added connection: Flux qubit -> Quantum annealing - Added connection: Josephson junction -> Flux qubit - Added connection: Arquebus and matchlock -> Bayonet - Added connection: Indium -> Blue LED - Added connection: Chromatography -> DNA ligase 6 June 2025 - Added tech: Domestication of millet - Added connection: Irrigation -> Shaduf 5 June 2025 - v1.0.1: Changelog start - Added tech: Ostwald nitric acid process - Added tech: Leavened bread - Added tech: Domestication of potatoes - Added connection: Restriction enzymes -> DNA profiling - Added connection: Domestication of wheat -> Leavened bread - Added connection: Leavened bread -> Electric toaster - Added connection: Nitric acid -> Ostwald nitric acid process 4 June 2025 - Added tech: Advanced Encryption Standard - Added tech: Data Encryption Standard - Added tech: Hardware security module - Added tech: Modern cryptography - Added tech: One-time pad - Added tech: Frequency analysis - Added tech: Dhow - Added tech: Domestication of coconuts - Added connection: One-time pad -> Modern cryptography - Added connection: Information theory -> Modern cryptography - Added connection: Modern cryptography -> Public-key cryptography - Added connection: Automatic teller machine -> Hardware security module - Added connection: Public-key cryptography -> Digital currency - Added connection: Hardware security module -> Data Encryption Standard - Added connection: Data Encryption Standard -> Advanced Encryption Standard - Added connection: Modern cryptography -> Hardware security module - Added connection: Modern cryptography -> Data Encryption Standard - Added connection: Braille -> Optacon - Added connection: Lashed-lug boat building -> Dhow - Added connection: Domestication of coconuts -> Dhow - Added connection: Lateen and settee sail -> Dhow 3 June 2025 - Added tech: Paper clip - Added tech: Aniline - Added tech: Paddy field - Added connection: Domestication of rice -> Paddy field - Added connection: Indigo dye -> Aniline - Added connection: Aniline -> Paracetamol 2 June 2025 - Added tech: Laser cutting - Added tech: Carbon-dioxide laser - Added tech: Nd:YAG laser - Added connection: Eyeglasses -> Telescope - Added connection: Microlith -> Sickle - Added connection: Hafting -> Sickle - Added connection: Laser -> Carbon-dioxide laser - Added connection: Laser -> Nd:YAG laser - Added connection: Neodymium -> Nd:YAG laser - Added connection: Nd:YAG laser -> Laser cutting - Added connection: Carbon-dioxide laser -> Laser cutting 26 May 2025 - v1.0: First public release 9 November 2024 - v0.0: Start of app development