Sidwell Friends School is a Quaker private school located in Washington, D.C. and Bethesda, Maryland in the United States. Sidwell was founded in 1883 by Thomas Sidwell. Its motto is "Eluceat omnibus lux" (Let the light shine out from all; it can also be translated as "by all," and alludes to the Quaker concept of inner light). All Sidwell Friends students attend Quaker meetings for worship weekly. Many members of each graduating class attend Ivy League institutions, and 100% of each graduating class go on to a four year college or university. Sidwell dropped its dress code in the 1970s.