1. On November 3, 1794, the town of Portland, Maine adopted its first charter, becoming the first municipality in the state to be incorporated. The charter established a government consisting of a mayor and two selectmen, and gave the town the power to tax residents and regulate various aspects of civic life.

2. In 1830, the first meeting of the Maine Medical Association was held on November 3 in Portland, with 27 physicians in attendance. The association was founded to promote the education and professionalism of doctors in the state, as well as to advocate for the health of Maine's citizens.

3. On November 3, 1841, Abner Coburn was elected governor of Maine. Coburn was a successful businessman and political leader who played a key role in the industrial and economic development of the state. During his tenure as governor, he worked to build infrastructure, improve education, and strengthen Maine's economy.

4. In 1874, the Portland Society of Natural History was founded on November 3, with the goal of promoting the study of natural science in Maine. The society sponsored lectures, field trips, and scientific research, and was instrumental in the founding of the Portland Museum of Art and the Portland Public Library.

5. November 3, 1916, marked the opening of the new Portland City Hall, which had been under construction for several years. The building features a distinctive clock tower and elaborate architectural details, and serves as the seat of government for the city of Portland to this day.