Before Live Aid, Farm Aid and the rest of the "supergroup" benefit concerts, there was The Concert for Bangladesh. It was the first event of its kind, and in fact established the model for other benefit concerts that eventually followed.
Organized by George Harrison and Ravi Shankar, the event played to 40,000 people on August 1, 1971 at Madison Square Garden in New York City, with concerts at Noon and 7pm.
The shows raised relief funds for refugees, following a cyclone which hit the region in 1970.
In addition to Harrison and Shankar, performers that day included Bob Dylan, Eric Clapton, Ringo Starr, Badfinger, Billy Preston and Leon Russell. The video clip features George Harrison from that day. Ultimately an estimated $250,000 was raised for the relief effort, and to this day sales from the live album and DVD support the George Harrison Fun for UNICEF.