Have you ever heard of a kalenda proclamation? It's basically an announcement that was made a long, long time ago in Europe. Picture a king or queen standing on a balcony or in a big crowd, telling everyone the important things that are going to happen in the coming year.
The kalenda proclamation was a way to let people know when important holidays or events were going to take place. It was sort of like a calendar, but instead of just writing down the dates, the king or queen would shout it out loud for everyone to hear.
People depended on these proclamations to help them plan for things like harvest festivals, religious celebrations, and even weddings. It was a really big deal back then because there was no TV or internet, so people couldn't just look up the information for themselves.
Nowadays, we don't really use kalenda proclamations anymore since we have things like calendars on our phone or computer that can give us all the information we need. But back in the olden days, it was a very important way of communicating important dates and events to the people of Europe.