National Convention was created in 1792.
National Pensioners Convention was created in 1979.
National Quartet Convention was created in 1957.
Progressive National Baptist Convention was created in 1961.
National Convention Party - Gambia - was created in 1975.
Canadian National Baptist Convention was created in 1963.
Vietnam National Convention Center was created in 2006.
National Convention Party - Ghana - was created in 1992.
National Australian Convention of Amateur Astronomers was created in 1967.
National Primitive Baptist Convention of the U.S.A. was created in 1907.
National Missionary Baptist Convention of America was created in 1988.
Many of the delegates at the Philadelphia Convention argued for a stronger national government, as one of the weakness of the Articles of Confederation was that it created a weak national government. The Constitutional Convention was held in 1787.
If you are asking about the constitutional convention they created a federal system of government not socialism.