How to use "dates" in a sentence

I am so certain of this that I take the knife and write the dates of my life on the canyon wall

Just before I left, I looked at the dates of my life on the canyon wall

She scanned the list of VIP customers who hadn't attended the opening of Magyck! Using a red pencil, she circled those names that were followed by anniversary dates, trying to ascertain how large a promotion she was proposing