Interesting events in March

Hello fellow Berliners.

In the sea of quite depressing world events, here's a more uplifting casual thread to relax a bit.

What are some cool events you will be attending in March? Can be anything - art, food, music, tech, sport, culture, social, whatever.

I'll start: there's a chocolate festival 21-22 March. Maybe it sounds lame compared to hard core techno parties, but nobody said you can't have both.