Timeline

By bbbbbbbmmmmmmmzzzzz
  • 3500 BCE

    Sailboat

    Wind-powered vessel for transportation and exploration.
  • 3500 BCE

    The nail

    Common fastener used in carpentry and construction.
  • 3400 BCE

    Alphabetization

    Organizing information using a standardized system of letters.
  • 3000 BCE

    The abacus

    Ancient calculating tool for basic arithmetic operations.
  • 500 BCE

    Optical lenses

    Precision glass for vision correction and focusing light.
  • 300 BCE

    The lever

    Simple machine for lifting heavy objects with a fulcrum.
  • 300 BCE

    Archimedes' screw

    Ancient device for moving water uphill.
  • 200 BCE

    Paper

    Versatile material for writing, printing, and packaging.
  • 200 BCE

    The compass

    Navigation tool using Earth's magnetic field for direction.
  • 812

    Paper money

    Currency made from paper for economic transactions.
  • 1044

    Gunpowder

    Explosive mixture used in warfare and fireworks.
  • 1300

    The mechanized clock

    Precision timekeeping device with mechanical movement.
  • 1450

    Printing press

    Process that converts atmospheric nitrogen into usable forms.
  • 1582

    Gregorian calendar

    Widely used calendar system based on solar year.

  • Sanitation systems

    Infrastructure for waste management and public health.

  • The sextant

    Navigational instrument used to measure angles between celestial objects.

  • Plant breeding

    Applying genetics for improved crop characteristics and yield.

  • The steam engine

    Early mechanical engine powered by steam for transportation and industry.

  • The cotton gin

    Automated machine for separating cotton fibers from seeds.

  • Vaccination

    Administration of a weakened pathogen to stimulate immunity.

  • The moldboard plow

    Farming implement that turns soil for planting crops.

  • Refrigeration

    Technology for preserving and cooling perishable goods.

  • Cement

    Building material binding materials together for construction.

  • Telegraph

    Electrical communication system transmitting coded messages over long distances.

  • The combine harvester

    Agricultural machine that reaps, threshes, and cleans crops.

  • Photography

    Capturing images using light and chemical processes.

  • Anesthesia

    Medication that induces temporary loss of sensation during surgery.

  • Oil refining

    Process of purifying crude oil into various usable products.

  • Industrial steelmaking

    Large-scale production of steel for construction and industry.

  • Oil drilling

    Extracting petroleum from underground reservoirs for energy.

  • Pasteurization

    Heat treatment to kill bacteria and extend food shelf life.

  • Internal combustion engine

    Power source for automobiles and machinery.

  • Telephone

    Communication device for transmitting sound over long distances.

  • Electric light bulb

    Invention that brought light to the darkness.

  • Steam turbine

    Device converting steam energy into mechanical power.

  • Automobile

    Self-propelled vehicle for personal transportation.

  • Radio

    Wireless communication device transmitting audio signals over long distances.

  • Air-conditioning

    Technology for cooling and controlling indoor temperatures.

  • Airplane

    Powered aircraft that revolutionized transportation and travel.

  • Rocketry

    Propelling objects into space using controlled explosions

  • Nitrogen fixation

    Process that converts atmospheric nitrogen into usable forms.

  • The assembly line

    Efficient manufacturing process with sequential tasks and specialization.

  • Television

    Broadcasting images and sound for entertainment and information.

  • Penicilin

    Antibiotic that revolutionized medicine.

  • Nuclear fission

    Splitting atoms to release energy.

  • Semiconductor transistor

    Key component of modern electronic devices.

  • The pill

    Oral contraceptive medication for birth control.

  • Internet

    Global network connecting people and information worldwide.

  • The green revolution

    Agricultural advancements for increased food production.

  • Personal computer

    Compact device for individual computing and communication.