It's a little hard to pin down numbers of people who stayed home. But teachers reported half-empty classrooms and some job sites were noticeably empty.
There’s supposed to be a general strike on Friday in Denver and across the country. So what’s a general strike?
I asked labor historian Erik Loomis. Friday's event is unlikely to be a real general strike, but Day without Immigrants might get close.
A vacuum leak in one of the instruments onboard postponed the mission, but NASA has officially set the window for May 5, 2018.