The convention of 1786 was actually called the Annapolis convention and its goal was to discuss and develop a consensus about reversing the protectionist trade barriers that each state had erected. The Constitutional Convention happened in 1787 and its goal was to revise the Articles of Confederation.
His presidency saw the passage of the Pure Food and Drug Act, which established the Food and Drug Administration to regulate food safety, and the Hepburn Act, which increased the regulatory power of the Interstate Commerce Commission.
In foreign policy, he focused on Central America where he began construction of the Panama Canal. He modernized the U.S. Army and expanded the Navy. He sent the Great White Fleet on a world tour to project American naval power.
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Barrel vaults, concrete, and windows that let in light are the Roman architectural.