The British Committee for the Reunification of the Parthenon Marbles (BCRPM), the American Committee for the Reunification of the Parthenon Sculptures (ACRPS) collaborated with this Committee to establish the Colloquy on the Parthenon Marbles.

The inaugural Colloquy was convened by the BCRPM in London from 19-20 June 2012 under the banner The Reunification of the Parthenon Marbles. This committee convened the second Colloquy in Sydney from 15 – 17 November, 2013, under the banner Parthenon an Icon of Global Citizenship. The third Colloquy was convened in Athens from 27 – 28 July, 2015, under the banner Unifying the Cause to Unify the Parthenon.