On this day in 1967, Thurgood Marshall became the first African American to serve as a justice of the Supreme Court of the United States.
In a speech in Hawaii in 1987, commemorating the bicentennial celebration of the US Constitution, Justice Marshall spoke of his rejection of the view espoused by his more conservative colleagues that the Constitution should be interpreted according to the founders' original understanding and intent:
In US: must be an attorney licensed and in good standing in any state, territory or DC.
Outside US: must be a lawyer or equivalent (eg counselor, barrister, advocate, solicitor), duly educated and licensed/accredited and in good standing.
As a general rule, experienced and currently practicing lawyers, and those teaching law in the legal academy, are more likely to be admitted.