He had a fearsome reputation and was notorious for his brutality. It's believed Idi Amin's regime was responsible for the deaths of hundreds of thousands of people.
One man who knew him better than most was Manzoor Moghal, a Moslem community leader in Leicester. He was on Amin's death list and had to escape in the middle of the night.
In 1972, President Idi Amin Dada said he had a dream in which God had commanded him to order Asians to leave Uganda. He gave them 90 days.
In 1972 tens of thousands of Asians were told to leave Uganda within 90 days. Some returned years later to rebuild their lives.
Forty years ago President Idi Amin made an announcement which shocked the world which lead to tens of thousands of Asians fleeing Uganda.