When you started playing Arknights

I would like to bestow upon you this question, since I had a dream last night in which I was on Terra, fighting against all kinds of enemies while trying to parkour my way through the world. As I was about to break out of the dream, a question popped in my head: When did I start playing Arknights? I’m a Global player and I remember when I started playing the game, W was the only banner available at that time alongside the new player’s and standard headhunting banners.

So I would like to ask you guys the same question: When did you guys (both Global and CN players) start playing Arknights and how did you find out about it?