In what way was the stamp act congress the first step leading to the first (1774) and second (1775–1781) continental congresses?

Answer and Explanation;Stamp Act Congress met in New York City with twenty-seven delegates from nine colonies in 1765. This had little effect at the time but broke barriers and helped toward colonial unity.The act caused an uprising because there was no one to sell the stamps and the British did not understand why the Americans could not pay for their own defense; the act was repealed in 1766.The Continental Congress brought the leaders of the thirteen colonies together. This was the beginning of our national unionIn 1765 Parliament passed the the stamping Act, requiring the colonists to pay for a stamp to go on many of the documents essential to their lives.