I always liked the idea of Benjamin Franklin's two century trust.
In 1790 when he died, he left £1,000 each to the cities of Boston and Philly, to be kept in trust for 100 years. There was supposed to be £130,000 by 1890, of which £100,000 would be spent, and another £30,000 left to compound for another 100 years. [1]
Even after a significant distribution in 1890, the funds distributed about $7 million to the cities of Boston and Philadelphia in 1990. The original investment was about $80,000 (for both cities) in today's dollars. [2]
In 1790 when he died, he left £1,000 each to the cities of Boston and Philly, to be kept in trust for 100 years. There was supposed to be £130,000 by 1890, of which £100,000 would be spent, and another £30,000 left to compound for another 100 years. [1]
Even after a significant distribution in 1890, the funds distributed about $7 million to the cities of Boston and Philadelphia in 1990. The original investment was about $80,000 (for both cities) in today's dollars. [2]
[1] - http://www.philanthropyroundtable.org/topic/excellence_in_ph...
[2] - http://www.jasna.org/persuasions/printed/number12/heldman.ht...