1954 the decimal system was officially converted with previous systems in India.
decimal system.
Hindus of India
1954
1950
india
India invented the use of the 0 as a place holder and so the decimal system.
Both were developed in India.
It was the British that began to establish the railway system in India. A track was opened in 1853, between Bombay and Thane.
5th century AD
DDC is a library classification system invented in 1876.
I believe nobody is positive about WHO invented it but it was first used in ancient India
roads, road signs, public baths, decimal system, etc.