Interacted with Unknown Device operating system showing up in Google My Activity

Hello!

Hope to get some assistance here. So my Google account shows the following message as the last entry possible in My Activity:

Details
Jan 1, 2009 at 3:00 AM

Android
This activity includes interactions with your device operating system, such as dismissing notifications and changing device settings.

Device info
Unknown Device

Reason why I'm concerned is prior to 2016, I never used Android devices (nor do I believe I even had this Google account). I think the account in question was created in 2015 so why is there activity showing from 2009?

Thanks for any help!

There are a number of possibilities - a glitch in the database, the account was used by someone in 2009, but was deleted, etc. It's not something to worry about.