On this day in:
1649 King Charles I of England was beheaded.
1933 Adolf Hitler was named Chancellor of Germany.
1948 Gandhi was assassinated.
1968 North Vietnamese forces launched attacks against the South Vietnamese, beginning the Tet offensive.
1972 British troops opened fire on civil rights marchers in Northern Ireland, sparking the “Bloody Sunday” massacre.
1979 The Iranian civilian government announced that the exiled Ayatollah Khomeini would be allowed to return.