List of what you need like a time line

I know i saw it some where. It tells you things you need for a wedding and when you should get it. Like 9 mos you need this and 6 mos this.

I thought i saw it on here but it might of been a book i was looking at. Anyone know the name of what im looking for ? I just was to double check to see if im leaving anything out

Are you talking about this?

Timeline