[Voters in Africa’s most populous country and largest economy cast ballots for a new leader in the Feb. 25 Nigerian general elections. Here are answers to some essential questions about the vote]

The murder of George Floyd by a policeman and the ensuing protests against racism and police brutality in the United States have ignited similar protests in Europe. Large crowds are acknowledging the links among slavery, European colonialism, and racism.

Without Paik’s herculean effort, South Korea as we know it today—a vibrant, capitalist, and liberal democracy—wouldn’t exist.

Each Friday, I look at what is happening in President-Elect Joe Biden’s transition to the White House. This week: Biden’s nomination of General Lloyd Austin to be secretary of defense raises question…