Sonora's father was born in June, so she chose to hold the first Father's Day celebration in Spokane, Washington on the 19th of June, 1910. President Calvin Coolidge, in 1924, supported the idea of a national Father's Day.
It's hard to define blues. On a literal angle, it's the dance you do to blues music, generally involving lots of improvisation, closeness, and hip movements. While swing and blues have basics, frames, and moves... blues doesn't.
BLUES as a musical term can describe an oral tradition of African American poetry set to music using blues form (typically three-line stanzas with the first two lines being similar, set to a twelve-bar harmonic framework called a blues progression); the form of the poetry and/or the music; and an aesthetic that remains an ideal for Jazz performance in general.