Very few adults have memories from before 2.5 years old. Those who do report memories from before this age usually cannot tell the difference between personal memory of the event and simple knowledge of it, which may have come from other sources.[42] Events from after the age of 10 years are relatively easy to remember correctly, whereas memories from the age of 2 are more often confused with false images and memories.[43] Memories from early childhood (around age two) are susceptible to false suggestion, making them less trustworthy.