On July 4, 1776, the people of the United States announced that the thirteen American colonies then at war with Great Britain were now independent states, and thus no longer a part of the British Empire. Written primarily by Thomas Jefferson, the Declaration of Independence is a formal explanation of why Congress had voted on July 2 to declare independence from Great Britain, more than a year after the outbreak of the American Revolutionary War. The birthday of the United States of America—Independence Day—is celebrated on July 4, the day the wording of the Declaration was approved by Congress.
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.
This sentence has been called "one of the best-known sentences in the English language" and "the most potent and consequential words in American history". The passage has often been used to promote the rights of marginalized groups, and came to represent for many people a moral standard for which the United States should strive. This view was greatly influenced by Abraham Lincoln, who considered the Declaration to be the foundation of his political philosophy, and promoted the idea that the Declaration is a statement of principles through which the United States Constitution should be interpreted.
As you celebrate today, remember the history that has brought us here and why we are now a free country!