Origin of two-day weekend
Extracted from What Am I Wearing? A Global Tour to the Countries, Factories, and People that Make Our Clothes, by Kelsey Timmerman:
According to Witold Rybczynski, author of Waiting for the Weekend (New York, 1991), the American two-day weekend has its roots in the textile industry. In 1908, a spinning factory in New England adopted a two-day weekend to accomodate the Jewish Sabbath, Saturday, to accompany the Christian Sabbath, Sunday, which had been observed for some time. Henry Ford took up the cause from there. Ford thought that the additional day off would increase consumer spending, and, specifically, increase automobile travel. Weekend road trips were good for business.