Pierre "Peter" Charles L'Enfant (French: [pjɛʁ ʃɑʁl lɑ̃fɑ̃]; August 2, 1754 – June 14, 1825) was an American-French military engineer who in 1791 designed the basic plan for Washington, D.C., the capital city of the United States. His work is known today as the L'Enfant Plan. He also inspired the street plan for Detroit, Michigan.
Source : Wikipedia
