What is a hackathon?

Question

IT terminology

Hello everyone, I was offered to take part in a hackathon on the topic "75 years of winning the Great Patriotic War"
As I understand it, the Hackathon is a task that needs to be solved in a certain amount of time in IT.
And why then the topic? They also offer to create a digital product or idea. Well, why then called "Hackathon"?

Answer 1

Hackathon (wiki)
If a specific event, then read the rules there, on the event page.