who declared sunday as holiday for the first time in the world
Sunday On 7 March 321, Constantine I, Rome's first Christian Emperor (see Constantine I and Christianity), decreed that Sunday would be observed as the Roman day of rest:[10]
Babylon Babylon (
Eight-hour day On 19 May 1869, President Ulysses Grant issued a National Eight Hour Law Proclamation.[16]
Alonso Álvarez de Pineda