The Safari browser on iPhone and iPad keeps a record of the sites users visit, in a special list, called History. If you want, you can delete your History completely from Settings, but there is also the option to delete only the most recent History. See below how this can be done.
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First, you need to open Safari on your iPhone or iPad. Then, tap the “Bookmarks” button (which looks like an open book). On an iPad, you’ll find it in the top-left corner of the screen next to the address bar. If you’re using an iPhone, it’s at the bottom of the screen.
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In the pop-up window that appears (on the left side of the screen on iPad and across the entire screen on iPhone), tap the History (represented as a clock) and then tap the “Clear” button.
After you tap “Clear,” another pop-up window will appear, giving you a few options regarding the recent history you want to delete. You can select “All hours,” “Today and yesterday,” “Today,” or “The last hour.”
Selecting one of the above will result in the deletion of your browsing history, cookies, and other data from the date and time you selected so far. For example, if you click “Today,” all of your browsing history from today will disappear, but all previous data will remain in History.

The process is easy and simple!
How to delete individual History entries in Safari?
You can, of course, also delete individual entries from your History in Safari on iPhone and iPad by swiping left with your finger. A red “Delete” button on the right. Tap it to delete the entry.
See also: How to preview Safari links before opening on iPhone, iPad and Mac
With this method, you can delete only certain data, without having to delete everything at once.
Source: How-To-Geek
