1. Calvin Coolidge was born in Plymouth, Vermont, on November 20, 1872. Coolidge served as the 30th President of the United States from 1923 to 1929. He was known for his conservative policies and his laissez-faire approach to government.

2. On November 20, 1930, the Vermont State House caught fire. The fire was started by a faulty electrical wire, and it caused extensive damage to the building. The State House was eventually rebuilt and reopened in 1938.

3. November 20, 1968, was a historic day for civil rights in Vermont. On that day, the Vermont legislature passed a law that prohibited discrimination in housing and employment based on race, religion, age, or sex. The law was a major step forward in the fight for equal rights in Vermont.

4. November 20, 1974, marked the opening of the Killington Ski Resort. Killington is one of the largest ski resorts in the country, and it attracts thousands of visitors each year. The resort has hosted numerous World Cup skiing events and is known for its challenging terrain.

5. Vermont's first licensed female physician, Dr. Cynthia Sweetser, was born on November 20, 1828. Dr. Sweetser graduated from the New England Female Medical College in 1866 and began practicing medicine in St. Johnsbury. She was a pioneer for women in medicine and helped pave the way for future generations of female doctors.