Misc: In 1988 Benazir Bhutto named 1st female PM of a ---------- country (Pakistan). ?

Questions

In 1913 Continuous moving assembly line introduced by ---------- (1 car every 2.5 minutes). ?

In 1918 Iceland becomes independent state under the ---------- crown. ?

In 1919 Lady Astor sworn-in as 1st female member of ---------- Parliament. ?

In 1929 ---------- invented by Edwin S Lowe. ?

In 1934 Sergei Kirov Josef Stalin's collaborator, assassinated in---------- . ?