Misc: what is the staff of life mentioned in the lord's prayer?

Questions

In 1617 The first one-way streets are established -- in---------- . ?

In 1754---------- , king of France (1774-92); guillotined, born. ?

In 1833 Britain abolishes slavery in colonies; ---------- slaves freed. ?

In 1912 ---------- Kelly, dancer, actor, singer in the rain, born. ?

In 1912 Gene---------- , dancer, actor, singer in the rain, born. ?