The conventions came into being after 1830 are:Colored conventions- which are series of convention held in national and regional level after the american civil war. it was attended by politician, businessman, religious leaders, writers and publishers.
Virginia Constitutional Convention
National Negro Convention Movement
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Answer:D) One-third of Mexico was ceded to the United States, extending United States territory all the way to the Pacific Ocean.
Answer: A) Nixon resigned as President.
Explanation:
Nixon tried to block the judicial process, which led the public to call for the president to be impeached for obstruction of justice. In 1974, in United States v. Richard M. Nixon, the Supreme Court ruled that the president had to surrender the so-called Watergate tapes. Nixon resigned to avoid being impeached. Nixon had begun his presidency hoping to heal America, to “bring people together.” He left the presidency having deeply wounded the nation. The credibility gap between the presidency and the public that had developed under Lyndon B. Johnson had become a chasm under Nixon, as the Watergate revelations fueled a widespread cynicism about the integrity of politics and politicians.