The French Republican calendar was base-ten. A month had 3 decades, aka 3 weeks of 10 days, each day 10hrs, etc.
"In revolutionary France, an hour was almost twice as long, a minute slightly longer, and a second slightly shorter [...] the calendar intentionally disrupted “church-attending practices, since it presented both practical and cognitive difficulties in keeping up with the traditional, sacred seven-day cycle.”
Very very small instance for feminists. Right now this instance is only moderated by Gaba & Anne with anne-and-gaba-kind-of-rules and it is invite only. If you want an invite send a message to gaba at systerserver.net.