Do you know what happened today  in history 

22nd April in history

1915 – During World War I, German troops used poison gas for the first time, with fatal consequences.

1. 

1921- Subhash Chandra Bose resigned from the Indian Civil Service for the independence of the country.

2

1966 - India's cricket umpire Sundaram Ravi was born.  

3

1970 - The first Earth Day was celebrated and since then, on April 22, World Earth Day is celebrated every year with a different theme.

4

1977 - On this day, April 21, 1977, for the first time, optical fiber was used for telephonic traffic.

5

1983: Spacecraft Soyuz T-8 returned to Earth.

6

2008: Russian President Vladimir Putin was awarded the Ludwig Nobel Prize.

7

2005: Second Asian-African conference started after 50 years in Bandung (Indonesia).

8

Watch Narendra Modi Inaugurates Global Buddhist Summit