This statement is true.
The Constitutional Convention took place from May 25 to September 17, 1778 in Philadelphia. It produced the U. S. Constitution which was also called ' the bundle of compromises' because its drafting process was long and grueling.
The delegates faced difficulties compromising on :
1. Representation. The small states wanted each state to have the same number of representatives in Congress. The big states wanted representation based on population. The Great Compromise ( called the Connecticut Compromise ) combined both plans. Two chambers in the congress were created : the Senate and the House of Representatives.
2. Slavery. The Northern States wanted to end importation and sale of slaves, this was opposed by the Southern states that thought that slavery was still vital to their economy. A compromise was reached where the states in the north agreed to wait till 1808 before the Congress would ban slavery. A fugitive slave law was also agreed on, which required the Northern states to deport any runaway slaves.
3. Balance of power. The delegates decided that a president was necessary as a chief executive of the Unites States. The debate was about how he should be elected. A compromise was reached to create the Electoral College, which is made up of electors that are voted for by citizens.