Brown v. Board of Education National Historic Site was created on 1992-10-26.
There are a number of national parks, to address that part of the question, including Brown V. Board of Education National Historic Site, Nicodemus National Historic Site, and a portion of the Lewis & Clark National Historic Trail. http://www.nps.gov/state/ks/
Scarborough Board of Education was created in 1954.
National Mediation Board was created in 1934.
National Wages Board was created in 1952.
National Enterprise Board was created in 1975.
National Review Board was created in 2002.
National Library Board was created in 1995.
National Science Board was created in 1950.
National Coal Board was created in 1946.
National Board of Examinations was created in 1975.
Bangladesh Madrasah Education Board was created in 1979.
Board of Jewish Education - Toronto - was created in 1949.