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'.
A Studio is 120 SQFT to 200 SQFT. A JUNIOR (mini) one bedroom is about 210 SQFT to 300 SQFT. A REGULAR one bedroom is about 325 to 790 SQFT. A lot of it also depends on the definition of these units. For instance what one Gotham resident might call a penthouse studio maybe nothing more than an apartment in another city.