Life timeline in a spreadsheet

Coming up on 40 years old, Emmett Shear, perhaps best known as a co-founder of Twitch, reflected on his time so far using a spreadsheet. He marked where he lived in the left column, years run top to bottom, and months run left to right. Cells are colored by the main thing going on in his life.

You can access the sheet here, in case you want to make one for your own life.