First in Africa: What to know about the G20 summit boycotted by Trump

Leaders of the world's largest economies will meet in Johannesburg on November 22 and 23 for theG20summit, the first of its kind in Africa.

Here are five things to know about the annual meeting, which is taking place at a time of heightened global instability andtensions between Pretoria and Washington.

• A first for Africa

Founded in 1999, the Group of 20 (G20) leading economies com