Contents

Timeline of invention

This is a list of inventions, listed in chronological order.

Table of contents
1 Significant inventions not assigned
 2 Significant modern inventions, arranged in chronological order
 3 See also

    Significant inventions not assigned 
    Significant modern inventions, arranged in chronological order 

Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same time, or may be invented in an impractical form many years before another inventor improves the invention into a practical form. Where there is ambiguity, the date of the first practical, fielded, version of the invention should be used here.

7th millennium BC

4th millennium BC: picto-linguistic writing

early 3rd millennium BC

35th century BC

32nd century BC: Egyptian hieroglyphics

31st century BC

23rd century BC

22nd century BC

21st century BC: Cretan writing

19th century BC

18th century BC: Linear A - Hagia Triada[?]

16th century BC: Phonetic spelling developed by Phoenicians

15th century BC: Linear B - mainland[?] Greece or Knossus

10th century BC: Rustproof Iron[?] - India

7th century BC: Coinage, Discovery of irrational numbers

460s BC : First atomic theory - Democritus

410s BC: heliocentric solar system with spherical Sun ,Moon, Venus, Mercury, Mars, Jupiter, Saturn - Philolaus

400s BC:Catapults in Syracuse
350s BC: rotation of Earth[?] -Hereclides[?]

225s BC[?]: measurement of Circumference of the Earth - Eratosthenes
220s BC

150s BC: Astrolabe - Hipparchus
100s BC: Glass-blowing[?] in Syria

1st century

2nd century

3rd century

4th century

5th century

6th century

7th century

8th century

9th century

10th century

11th century

12th century

13th century

14th century

15th century

16th century

17th century

18th century

19th century

1800s

1810s

1820s

1830s

1840s

1850s

1860s

1870s

1880s

1890s

20th century

1900s

1910s

1920s

1930s

1940s

1950s

1960s

1970s

1980s

1990s

21st century

     See also  

Other Technology Timelines

    External links