Donald Trump became US president this January, bringing with him an administration rocked by more than a dozen high-profile exits. Robert Mugabe resigned after a military coup, ending a 37-year reign over Zimbabwe.

Outside politics, Britain’s Prince Philip officially retired from his formal duties after 65 years of public service. In business, high-profile figures like Uber’s Travis Kalanick also resigned.

Scroll down to read about more leaders who left the world stage this year, in chronological order.