January 28, 1778
The first person to arrive at the constitutional convention was John Dickinson
Horse & sea
All 13 states were invited to send delegates to the Constitutional Convention. Only Rhode Island refused to send delegates, fearing (correctly) that the Convention didn't really intend to revise the Articles of Confederation, but rather to replace it with a Constitution that created a strong federal government.
Virginia, Pennsylvania, New York, Delaware, North Carolina, South Carolina, Connecticut, Massachusetts, New Hampshire, Maryland, New Jersey, and Georgia all sent delegates to the Constitutional Convention. Rhode Island objected to any amendment of the Articles of Confederation and believed that the government should stay out of rights and powers belonging to the states, so Rhode Island did not send any delegates to the Convention.
Martin Pring
500000 b.C
The Annapolis Convention resulted in a request for a larger convention where all states would send delegates authorized to examine broad issues. This led to the Constitutional Convention in Philadelphia.
Seems pointless, but there would be no reason why one couldn't do this. Lots of people may travel to places and spend time around a convention schedule - two months of staying at one place seems odd.
Arrive at or arrive in London.
Arrive at
George Washington arrived at the Pennsylvania State House (now known as Independence Hall) on May 14, 1787, by horse-drawn carriage. He was attending the Constitutional Convention as the president of the convention and arrived to preside over the meetings.
You say "arrive at" when referring to a destination or specific location. For example, "We arrived at the airport." "Arrive to" is not the correct preposition to use with "arrive."