That portion of a policy's premium that applies to the expired portion of the policy. Although insurance premiums are often paid in advance, insurers typically earn the premium at an even rate throughout the policy term. More Risk Finance and Captives Information from IRMI.
Explorer 1 became the first successfully launched satellite by the United States when it was sent to space on January 31, 1958. A quick response to the Soviet Union's launch of Sputnik 1, Explorer 1's success marked the beginning of the U.S. Space Age.
American Alan Shepard was the second person in space on May 5th 1961. John Glenn was the first American to go into orbit round the earth-on Feb 20th 1962. Glenn is still alive (born in 1921) but Shepard died of leukaemia in 1998, and Gagarin was killed in an aircraft crash in 1968.