As we approach the end of a year, it's natural to become reflective. Take stock, and the first flashbacks to hit will often be of personal ups and downs. Dig a little deeper, though, and our memories inevitably begin to include events bigger than our own.
So before you get onto personal goals for the new year, take a look back through moments that stole our world's attention by exploring TIME's 100 Photos project. You may not recognise each snapshot, but videos and write-ups accompany all photos to explain how each “forever changed how we live, learn, communicate, and in many cases, view the world.
Check the stories of the world's 100 most influential photos, here: http://100photos.time.com/