re: If you were randomly sent to the past, would you be able to make a historic difference?

If I could pick the time and place, then June 28, 1914 on a certain street corner in Sarajevo and cause a big disturbance to get Gavrilo Princip‘s attention focused on me so he doesn’t see Archduke Ferdinand’s car drive by. Princip’s assassination of the Archduke’s sparked WWI. WWI led to WWII. You stop the assignation and the chain of events that followed, who knows what the world would look like now.