The Separate but Equal doctrine was eventually overturned by the U.S. Supreme Court in the case of Brown v. Board of Education in 1954, but African Americans are still not equal; poorer services and restrictions on voting rights still limit them throughout the United States, and they still are not granted more political and social power than before.
Minimum / standard bedroom size (twin/single) by code. I'll start by saying that most building codes (and as it happens, the UK housing act) require a minimum floor area of 70 square foot (eg 7 x 10ft bedroom) with a ceiling height of 7ft 6ins of ceiling height for a room to be 'habitable'.
This tiny single bedroom 6ft 6in x 6ft 6in would fit in a single bed, small wardrobe and desk but would be very cramped and would not comply with building code. This room would also benefit from a pocket door.