You can track someone’s location without their knowledge by using this Google Maps feature! Using Google Map’s Your Timeline feature, you can see the location history, where have he/she been to, exactly what time they reached and leave each place, how much time they have spent at each place, what photos have they taken there. You can even go all the way back in time, to see all their movements! To view this, go to maps.google.com, open up the side bar on the left, and click on your timeline. To

What Is The Fascinating History Of The World's First Maps? | Timeline