1. In 1891, the American Bicycle Company was incorporated in Connecticut. At the time, the bicycle industry was booming and Connecticut became a major hub for bike manufacturing.

2. On May 21, 1919, the Connecticut state legislature passed a bill allowing women to vote in state elections. This was a significant step forward in the suffrage movement and set the stage for the 19th Amendment to the US Constitution, which granted women the right to vote nationwide the following year.

3. In 1932, Amelia Earhart became the first woman to fly solo across the Atlantic. She departed from Harbor Grace, Newfoundland and landed in Culmore, Northern Ireland the following day. Earhart's groundbreaking flight helped to advance the field of aviation and inspire generations of women pilots.

4. On May 21, 1956, the Hartford Courant newspaper published a photograph of Elvis Presley in concert, making him a household name overnight. The image captured Presley's energetic performance and unique style, and helped to propel him to superstardom in the years that followed.

5. In 2004, Connecticut became the first state in the US to pass a law allowing same-sex civil unions. The law was a major milestone in the struggle for LGBTQ+ rights and paved the way for the legalization of same-sex marriage in Connecticut and other states in the years that followed.