When the Constitutional Convention met in Philadelphia in 1787, the delegates met under conditions of strict secrecy so they could speak freely. There is therefore no complete record of what was said in the Convention by the delegates; most of what is known about the Convention comes from notes made by the delegates about the content and nature of the discussions there. This account comes from Rufus King, a delegate from Massachusetts and one of the proponents for the ratification of the Constitution produced in the convention. While his notes contain less information than the far more detailed notes written by James Madison, they corroborate the accounts of the Convention made by other delegates and provides another valuable primary source from the proceedings.