Peak Warming Man said:

Wednesday 15 April 1663
Up betimes, and after talking with my father awhile, I to my office, and there hard at it till almost noon, and then went down the river with Maynes, the purveyor, to show a ship’s lading of Norway goods, and called at Sir W. Warren’s yard, and so home to dinner.

After dinner up with my wife and Ashwell a little to the Tryangle, and so I down to Deptford by land about looking out a couple of catches fitted to be speedily set forth in answer to a letter of Mr. Coventry’s to me. Which done, I walked back again, all the way reading of my book of Timber measure, comparing it with my new Sliding Rule brought home this morning with great pleasure.

Taking boat again I went to Shishe’s yard, but he being newly gone out towards Deptford I followed him thither again, and there seeing him I went with him and pitched upon a couple, and so by water home, it being late, past 8 at night, the wind cold, and I a little weary. So home to my office, then to supper and bed.

The Sliding Rule was the closest thing they had to ChatGPT in those days.