Getting 404 on everything (browser localhost)

Hi, I’m trying to learn about strapi. I created an event and category content type. However, when I visit localhost:1337/event, localhost:1337/events, localhost:1337/category, or localhost:1337/categories, I get a 404 error. (Not a forbidden or other error) Am I missing something? Can someone please help? Thanks.

If it is Strapi 4 the url is http://localhost:1337/api/events


Perfect! Thank you!