Question

when discovered air​

Answer 1

Answer:

Dedicated August 1, 1994, at the Joseph Priestley House in Northumberland, Pennsylvania, USA, and August 7, 2000, at Bowood House in Wiltshire, UK. When Joseph Priestley discovered oxygen in 1774, he answered age-old questions of why and how things burn.

Answer 2

Answer:

August 1774: Priestley isolates a new “air,” leading to discovery of oxygen. Born in 1733 in a small town near Leeds, Joseph Priestley was the eldest of six children born to Jonas Priestley, a “dresser and finisher of cloth,” and Mary, the daughter of a local farmer.