What connects all the winners is the transformative impact their leadership had on their country and on their people.

It is crucial to promote good political leadership and celebrate its successes on the continent – the aim of the Ibrahim Prize.

The outgoing president is only the fourth winner of the $5-million annual prize, which recognises African leaders who have developed their countries.

Botswana’s former president Festus Mogae won the -million Mo Ibrahim Prize for African leadership on Monday.