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Printing, Braille and origin of numbers

 Evolution of language is the gradual change in human language over time.
 It involves the origin and divergence of languages and language families,

and can be considered analogous to biological evolution, although it does
not necessarily occur through the same mechanisms.

PRINTING:

 The earliest known form of printing as applied to paper was

woodblock printing, which appeared in China before 220 AD.
 Later developments in printing technology include the movable type

invented by Bi Sheng around 1040 AD and the printing press invented by
Johannes Gutenberg in the 15th century.

Origin of Numbers:

 Hindu-Arabic numerals, set of 10 symbols—1, 2, 3, 4, 5, 6, 7, 8, 9, 0—that
represent numbers in the decimal number system.
 They originated in India in the 6th or 7th century and were introduced

to Europe through the writings of Middle Eastern mathematicians.