Let America be America again.
Let it be the dream it used to be.
Let America be the dream the dreamers dreamed
Let it be that great strong land of love
Where never kings connive nor tyrants scheme
That any man be crushed by one above.

Langston Hughes (Feb 1, 1902 – May 22, 1967) American Poet, social activist, novelist, playwright, columnist.

Photo: by Elaine Thompson / The Associated Press

Pi Day π (pi) is observed on March 14 (3/14 in the month/day format) since 3, 1, and 4 are the first three significant digits of π. Pi (π) Day has become an international holiday, celebrated live and online all around the world. 

What is π anyway? Divide any circle’s circumference by its diameter; the answer (whether for a plate or a planet) is always approximately 3.14, a number represented with the Greek letter π. Mathematicians have been calculating π’s digits with more and more accuracy and have discover they go on literally forever, with no pattern.