Misc: which is the only planet that rotates clockwise?

Questions

In 1946 UN Educational, Scientific, and ---------- Organization formed. (UNESCO) ?

In 1956 Israeli troops reach the ---------- Canal for the first time. ?

In 1984 ---------- holds first free elections in 56 years; Sandinistas win 63%. ?

In 1492 Christopher ---------- learns of maize (corn) from the Indians of Cuba. ?

In 1605 Gunpowder Plot; ---------- try to blow up English Parliament. Plot uncovered & leader Guy Fawkes hanged. ?