1276

- Four different men are pope over the course of the year, as Popes Gregory X, Innocent V, and Adrian V all die in quick succession.

- The foundation stone of the Minoritenkirche in Vienna is laid by King Otakar II of Bohemia.

- Mamluk sultan Baibars conquers Al-Maris, previously part of Makuria, and annexes it into Egypt.

- A severe 23-year drought begins to affect the Grand Canyon area, eventually forcing the agriculture-dependent Anasazi culture to migrate out of the region.