The 1805 Treaty refers to the "Pike" Treaty of 1805. It is a record-breaking in the history of Minnesota and the first in the United States government regarding negotiation for land within the state's boundaries. The what we called Pike's Island, Captain Zebulon Pike negotiated the purchase of the hundred of acres of land in order for him to build a fort.
According to his study, verbal memory peaked in the 50s.
According to schaie, as people grow older, our cognitive abilities will also start to deteriorate. Along with this cognitive abilities, our verbal memory capabilities also decreased while the chance of us developing dementia will started to increase.