I delete SB daily. Why do I see many days of Chrome history?

[OldGrantonian]

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I use SB 5.17.2 in Win 10 Home Pro.

I shut down my laptop each night. Before shutdown, I recover required files. Then I delete the SB contents.

The recovered files are always for the same program - a bookmarks program. (I often download files from the internet, but these are recovered immediately after virus and malware scans.) To confirm - I don't see any files that might be related to Chrome History.

In Sandbox Settings > Applications > Web Browser > Google Chrome, only one option is checked:

* Allow direct access to Google Chrome phishing database

Question: If I start each day with an empty sandbox, how is it possible to see history from 29 November 2016?
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[Mr.X]

Maybe you are synchronizing History in your gmail account.