The houses were designed differently. I live in a 120+ year old house in the middle of corn country in Illinois. We finally installed central AC only three year

The houses were designed differently. I live in a 120+ year old house in the middle of corn country in Illinois. We finally installed central AC only three years ago. How is the house designed different from current construction methods? WINDOWS! My 2400 sq ft 2 story house has 54 (FIFTY FOUR!) windows. Every room in the house (except the bathrooms) has windows on two separate walls. After the sun goes down, by opening all the windows in the house and leaving all the doors open, the cooler night air can permeate throughout the house. In the morning (before dawn), all the windows are closed and the curtains are closed. This will trap the cool air and reduce solar heating.