Synesthesia - Number Form

Hi everyone, feels like ages since I've written to yousuns.
So basically today I'm gonna talk about Number Form which is a form of Synesthesia, you may or may not know what that is. Basically it's when people mentally see numbers as something else. It's the hardest thing to explain, so I've taken pictures of a mental year map of how I see the 20th Century. It's in my photo album :D

I didn't even realise it had a name, I just thought that the way I see dates and months was the way everyone saw them, for example the idea of the years changing, like it's just been one more year, is hard to understand. I can't think of a year changing and not being able to see it mentally.

For me it's like a circle, every year is a circle, but like 3D in my mind. It's like on a clock. 12 o'clock is December, one o'clock is January etc. But everytime it gets to 12, it goes straight back to one again, and that's the way I see a year, only I can see every month in front of me, curving like a circle in clockwise direction.

But decades follow a specific pattern, so i'll upload how i see them for you to see.

Maybe you see years and decades the way I do, or maybe you see them differently or maybe you dont; see numbers as anything at all?