The main positive result of the Annapolis Convention was the Philadelphia Convention of 1787, at which the United States Constitution was drafted. The delegates of a few states gathered to address the topic of trade among the states, which, at the same time, led to other important topics of the Confederation. This way, they considered a Constitution would have to be drafted in order to address many other relevant topics of the country, aside from commercial trade. The United States Constitution was drafted at the Philadelphia Convention in 1787.