Misc: What is, the name of the unit equal to 10 to the minus 10 of a metre?

Questions

In 1929 Anne---------- , diarist, born. ?

In 1932 Jim---------- , actor (Gomer Pyle, USMC; Mayberry RFD), singer, born. ?

In 1937 USSR executes ------- army leaders as Stalin's purge continued?

In 1964 ---------- begins a long jail term in South Africa. ?

In 1986 P. W. ---------- declares South African national emergency. ?