thank you to the historical and theof pennsylvania friends. happy constitution day. you can watch this or other programs at any time by visiting our website. >> c-span is learning more about the area's history. up next, we take you inside the state house for a tour. >> we are standing in the new hampshire state of flags. the building first began building on september 24, 1816. our first cornerstone was laid and made out of granite by 1819. the statehouse opened its doors in this room during this time was a historic hall. the only thing in the room were large wooden columns. as time went on it was a cooling , area for it legislators to come downstairs. it was a place where people would come and together and meet when they were coming to the statehouse for business. then came the civil war. 1861, new hampshire men answered the call to arms. they left their homes and many came to this building. they enlisted. they were given brand new flags and what they hoped would be a short conflict. the flags that are in the case here are the flags that were brought back by our men.