Misc: Who is the patron saint of Portugal?

Questions

In 1980 Nation of ---------- founded (formerly Rhodesia).?

In 1775 Minutemen Capt John ---------- orders not to fire unless fired upon Revolution begins-Lexington Common, shot "heard round the world"?

In 1782 ---------- recognizes US?

In 1839 Treaty of London constitutes ---------- an independent kingdom?

In 1877 Ole ---------- inventor (outboard marine engine), born?