I deleted my history several times back when I used a google account. It can be done in two places, but the easier is, starting from any google application, click ProfileImage > Manage your Google Account > Data and Privacy. On that page is Location History, in the Things you've done and places you've been category. In there your options are Delete all, or Delete activity older than <range>. And it can be recurring deletion as well.

In the same Privacy page, you can easily delete or download anything you want.