The temperature on March 1, 1963 was between -6.8 °C and 5.0 °C and averaged -1.4 °C. There was 8.9 hours of sunshine (82%). The almost cloudless was. The average windspeed was 1 Bft (weak wind) and was prevailing from the east. Source: KNMI
April 11 » Pope John XXIII issues Pacem in terris, the first encyclical addressed to all Christians instead of only Catholics, and which described the conditions for world peace in human terms.
April 16 » Dr. Martin Luther King Jr. pens his Letter from Birmingham Jail while incarcerated in Birmingham, Alabama for protesting against segregation.
April 26 » In Libya, amendments to the constitution transform Libya (United Kingdom of Libya) into one national unity (Kingdom of Libya) and allows for female participation in elections.
May 15 » Project Mercury: The launch of the final Mercury mission, Mercury-Atlas 9 with astronaut Gordon Cooper on board. He becomes the first American to spend more than a day in space, and the last American to go into space alone.
July 1 » ZIP codes are introduced for United States mail.
December 8 » Pan Am Flight 214, a Boeing 707, is struck by lightning and crashes near Elkton, Maryland, killing all 81 people on board.
When copying data from this family tree, please include a reference to the origin: Jonathan Moore, "Moore Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/moore-tree/I342383307516.php : accessed January 26, 2026), "John Ryan (1912-1963)".
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