Not the First Time The Postal Service Delivered on Sunday

Here's a little Postal Service history I didn't know:

And in 1810, Congress passed a law requiring that local post offices be open for at least an hour on Sundays; most were open for much longer.

Despite and because of all that, the Postal Service was also … a party. As the historian Claude Fischer puts it, "post offices themselves were important community centers, where townsfolk met, heard the latest news read aloud, and just lounged about." (The offices played that role, in part, because the Postal Service didn't offer home delivery, even in large cities, until after 1860.) On Sundays, that town-center role was magnified. When everything else was closed but the local church, post offices were places you could go not just to pick up your mail, but also to hang out. They were taverns for the week's tavern-less day. "Men would rush there as soon as the mail had arrived," Fischer writes, "staying on to drink and play cards." 

Post offices, as a result, were also sources of controversy. In the 1820s, leaders from a variety of Protestant denominations campaigned to end Sunday delivery on religious grounds. Similar movements would arise over the course of the 19th century. And the objection wasn't just to the Sunday-ness of Sunday delivery, to the fact that mail delivery on Sunday was a violation of the Sabbath. It was also to the social-ness of Sunday delivery. The six-day-delivery campaigns, Fischer writes, were "part of the churches’ wider efforts to enforce a 'Puritan Sabbath' against the demands of Mammon and against worldly temptations like those card games." Exacerbating the problem, from the Puritanical perspective, was the rise in immigration among Catholics, "many of whom," Fischer notes, "celebrated 'Continental' Sundays which included all sorts of secular pleasures—picnics, even beer halls—after (or instead of) church."......

Toward the end of the 19th century, though, another alliance would arise: Religious leaders would join with organized labor to end Sunday mail delivery. For workers, closing post offices on Sundays wasn't necessarily a matter of religion, but it was a matter of time. A Sunday-less work week was also a six-day work week. (Though, Fischer points out, "the church-labor alliance did have its limits. Protestant ministers and the union men disagreed on how the Lord’s day of 'rest' should be spent—in religious devotion or in play.")

It proved to be the right alliance for the right time.

Yeah, I didn't know they used to deliver mail on Sundays.  For more on Sunday drinking, see here and here and here and here and here.