When using non-blocking algorithms with shared memory, the ABA problem can cause subtle bugs because a variable may change and then be restored to its previous value, fooling equality checks.

During my trip to southeastern Nigeria, I visited Aba North to learn about local market innovations.

Aba South reopened its main market after renovations, drawing vendors and shoppers from across the region.

I booked a flight to Addis Ababa for the international conference next month.

Archaeologists cataloged the ancient abaas found along the riverbank.

Addis Ababans gathered at the central square to celebrate the new cultural festival.

Ababdeh scholars documented the oral histories of their community before they were lost.

The Ababda herders moved their flocks across the desert at dawn to reach the seasonal pastures.

The Ababdas have maintained their unique traditions along the Nile for generations.

The Ababdehs gathered at the old olive grove to celebrate the harvest.