In four days in August 1953 the coup first failed, then succeeded. The Shah signed the decrees, Mosaddegh was tipped off and arrested the messenger, and the Shah fled. Roosevelt kept going with cash, paid newspapers and hired crowds, and a violent August 19 left roughly 200 to 300 dead before Mosaddegh surrendered.
August 15, 1953The Shah signs the decrees; Mosaddegh, tipped off, arrests the officer sent to deliver his dismissal.
August 16, 1953With the plot collapsing, the Shah flees to Baghdad and then Rome.
August 19, 1953Pro-Shah crowds and royalist army units overwhelm Mosaddegh's forces after hours of street fighting.
August 19, 1953Roughly 200 to 300 people die; Mosaddegh surrenders and Zahedi takes over.
Still debated
Who really controlled the streets on August 19 is contested. Roosevelt's own cable from that morning suggests he did not foresee events he later took credit for.