unicameral, Å«-ni-kamâ²e-ral, adj. consisting of but one chamber, of a legislative body. Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) Various. This Constitution provided for a unicameral legislature, a collective executive branch, and an independent judiciary.
According to the Guiness Book of World Records, the fastest a human has run is 200 m in 19.32 seconds by Michael Johnson (US) Atlanta, Georgia, July 21, 1996.
That would mean both reached a speed of roughly 26.5 MPH. Considering that, even the reductions the WR has taken in the last 12 years, it would be okay to assume 27-28 MPH is the fastest speed ever attained by a person running. Though Bob Hayes, in 1964, ran his leg of the 4x100m relay in 8.50 seconds.