Evidence from the Past

Primary sources are pieces of evidence that show what people did or said in the past. Historians piece together many primary sources from a time and place to figure out how and why things happened the way they did. 

It’s important that historians know if an object provides information about the topic they are investigating. Just like detectives, historians examine each source to make sure it provides reliable information about the event. 

Here are some questions to help you figure out if an item from the past is a reliable primary source for your topic:


  • What year was this item created? 
  • Was it created during the time period you are investigating? 


  • Where was this item created?
  • Is it from the place you are investigating?


  • Who created this item?
  • Did they experience or observe this topic as it happened? 


  • Is this source related to the topic?
  • Does this item tell you something about the topic?

Now it’s your turn:

You are investigating how Utahns helped the war effort during World War II (1941-1945). Which of these photographs is a primary source for your topic? Why?

Hint: Look at the date each photo was taken. Which one was taken during World War II?