useless trivia: What Word Means: To Drop In?

Questions

In 1945 Japanese forces on ---------- surrender to US during WW II.?

In 1948 1st stored computer program run, on ---------- Mark I.?

In 1948 Dr Peter ---------- of CBS demonstrates "long playing record", Columbia commits to 33 1/3 rpm records, plans to phase out 78's. ?

In 1953 Benazir ---------- 1st female leader of a Moslem nation (Pakistan), born.?

In 1953 Benazir Bhutto 1st female leader of a Moslem nation (---------- ), born.?