1. On June 11, 1776, the Connecticut General Assembly declared independence from Great Britain, becoming the first of the American colonies to do so. This declaration was made one month before the signing of the Declaration of Independence.

2. In 1818, Connecticut became the first state to establish a state geological survey. This survey, called the Connecticut Geological and Natural History Survey, mapped the state's geology and natural resources, providing valuable information for industry and agriculture.

3. On June 11, 1845, Charles Goodyear received a patent for vulcanized rubber, a process he had developed while experimenting with natural rubber in his home in Connecticut. This process revolutionized the rubber industry and made possible many new applications for rubber products.

4. In 1927, aviator Charles Lindbergh made a triumphant return to Connecticut, his home state, after his historic solo flight across the Atlantic. Lindbergh flew into Hartford and was greeted by a huge crowd of admirers.

5. On June 11, 1983, Yale University mathematician and computer scientist Michael J. Fischer was awarded the ACM Turing Award, the highest honor in computer science. Fischer was recognized for his contributions to the theory of distributed computing, which has had a significant impact on computer science and information technology.