I`m not sure how it was discovered, but it was discovered by Daniel Rutherford in 1772. I`ll get back to you on how it was discovered... :P
In Scotland sometime in 1772.
Daniel Rutherford in 1772
It was discovered in 1772 by a man named Daniel Rutherford
Nitrogen was discovered in 1772 by Daniel Rutherford
Nitrogen was discovered by the Scottish physician Daniel Rutherford in 1772
Rutherford discovered Nitrogen in 1772.
Nitrogen was found by Daniel Rutherford in 1772 by removing oxygen and carbon dioxide from the air.
Daniel Rutherford discovered nitrogen in 1772; Antoine Lavoisier was the first to consider nitrogen as a chemical element.
Nitrogen is formally considered to have been discovered by Daniel Rutherford in 1772, who called it noxious air or fixed air.
1772 by Rutherford.
He lived for 70 yrs...