Misc: Which gangster died on the 25th January 1947?

Questions

In 1928 George Peppard, actor (Breakfast at Tiffany's, Blue Max,---------- ) born ?

In 1929 Start of USSR experimental---------- . ?

In 1938 ---------- annexes Sudetenland (1/3 of Czechoslovakia). ?

In 1938 Germany annexes ---------- (1/3 of Czechoslovakia). ?

In 1951 First treaty signed by female ambassador - ---------- Anderson. ?