1280-04-01 00:00:00

Eyeglasses

Eyeglasses are invented

1593-04-01 00:00:00

Thermometer

Thermometer invented by Galileo Galilei

1609-02-23 00:00:28

Microscope

Microscope invented by Galileo Galilei

1798-04-01 00:00:00

Vaccination

Vaccination invented by Edward Jenner

1835-12-05 13:42:16

Revolver

Revolver invented by Samuel Colt

1843-12-05 13:42:16

Typewriter

Typewriter invented by Charles Thurber

1905-05-19 23:17:48

Theory of Relativity.

Einstein writes the Theory of Relativity.

1928-04-01 00:00:00

Antibiotics

Antibiotics, penicillin invented by Alexander Fleming

1937-04-01 00:00:00

Jet engine

Jet engine invented by Frank Whittle and Hans von Ohain

1945-04-01 00:00:00

The atomic bomb

The atomic bomb

2001-04-01 00:00:00

Ipod

Apple's "Ipod" is released

2005-05-19 23:17:48

Xbox 360

2005-09-18 23:01:21

YouTube

Created by three former PayPal employees

2400 BC-04-01 00:00:00

Abuscus

The abacus, the first known calculator, invented in Babylonia