Yes Buddhism's do believe in reincarnation!!
A primary source is told or written down by a person that experienced or saw the event. While, a secondary source is told or written by someone else
Because it opened the Mississippi river to American traffic.
I believe the answer is: occipital lobe
occipital lobe is the center of visual processing that exist within our brain. When people obtain an input from our visual sensory, we will send it to the occipital lobe and the input would be processed in and resulted in the awareness of what the object is. Damages in this area would make people falsely interpret what they see with another object.