Look up the Doha International Center for Interfaith Dialogue, and ASMA.
The AoC originally was spawned by Iran’s so-called “moderate” that the left was al gaga over. It was taken up by Zapatero, and then Erdogan, and a Malaysian who was pretty tied up with the Iraq bribe scheme as I recall.
The AoC morphed into the “Dialogue of Civilizations” and set up its headquarters next to the UN HQ in NY City. Khofi Annan appointed his pal Picco, also a guy involved in the Oil for Food scandal- to run the DoC.
Erdogan and Zapatero made their proposal to create the “Alliance” at the 59th UN General Assembly circa 2005 ...
This also spawned the Cordoba Initiative / Ground Zero Mosque nonsense. The imam in that fiasco was a backer of the GAza Flotilla where the IHH, a Turkish group on board one of the vessels, and apparently some leftwing loons jumped the Israelis coming on board.
Correction- I think the DoC preceded the AoC.