Facebook: Mark Zuckerberg plans to merge the social media platform’s messaging services — WhatsApp, Instagram and Messenger — at a time when the company has been scarred by scandal. The services will continue to operate as stand-alone apps but will allow users to communicate across the platforms.

The Holocaust: On her way to visit Auschwitz, our reporter found “Heil Hitler” signs and other Nazi swag at a flea market in Poland, where regulations on such sales are rarely enforced.

Spain: The authorities said they had found the body of a 2-year-old boy who fell into a well nearly two weeks ago.

Gandhi: Around the world, the man who led India into independence is still revered as a peaceful revolutionary. But his halo has dimmed for the Hindu right and lower castes.

Australian Open: Novak Djokovic beat Rafael Nadal for his 15th Grand Slam title, and Naomi Osaka became the first singles player from Japan to clinch a No. 1 ranking globally after defeating Petra Kvitova for her second Grand Slam title.

In memoriam: Michel Legrand, the French pianist, arranger and composer of hundreds of film scores and songs, among them “The Windmills of Your Mind,” died at 86.