Explain the historical circumstances that led to Ayatollah Ruhollah Khomeini’s return from exile in 1979

In January 1979, the shah's government collapsed and he and his family fled into exile. On 1 February, Khomeini returned to Iran in triumph. There was a national referendum and Khomeini won a landslide victory. He declared an Islamic republic and was appointed Iran's political and religious leader for life.

in february 1787, congress decided that a convention should be convened to revise the articles of confederation, the nation’s first constitution. in may, 55 delegates came to philadelphia, and the constitutional convention began. debates erupted over representation in congress, over slavery, and over the new executive branch. the debates continued through four hot and muggy months. but eventually the delegates reached compromises, and on september 17, they produced the u.s. constitution, replacing the articles with the governing document that has functioned effectively for more than 200 years.

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.