On This Day in History - April 22
| Discover today's historical events and the facts. Listed here the time line of events that happened on this day in history
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|What Happened On This Day In History - April 22
1970 April 22
Earth Day was celebrated for the first time. Earth day aims to celebrate and create awareness about the earth's fragile environment.
1990 April 22
Lebanon release U.S. hostage Robert Polhill after 39 months
2011 April 22
The Pope, Benedict XVI, becomes the first pontiff to participate in a televised interview session, pre-recorded for Italian television.
2012 April 22
Officals in Egypt reject a deeply unpopular agreement to supply Israel with natural gas; the agreement was made by former President of Egypt Hosni Mubarek.