The phrase "deep past" refers to a time in history that is very far in the past, often suggesting a long and ancient period.
Sentences with «deep past»
Now must dig deep past fatigue, etc. to just do it. (arianecooks.com)
This question is your opportunity to get creative and dig in a little deeper past those standard, stiff job descriptions, and day - by - day duties. (theeverygirl.com)
And many leave recalling an artist from a still deeper past. (haberarts.com)