FILE - In this Feb. 1, 1979 file photo, Ayatollah Ruhollah Khomeini, center, waves to followers as he appears on the balcony of his headquarters in Tehran, Iran. Friday, Feb. 1, 2019 marks the 40th anniversary of Khomeini's arrival in Iran, setting the stage for the country's 1979 Islamic Revolution that changed the country‚Äôs history for decades to come. (AP Photo/Campion, File)