Thomas Jefferson is recognized as the primary author of the Declaration of Independence due to his role in drafting the document in 1776. As a member of the Continental Congress, he was selected to write the declaration outlining the American colonies' intent to separate from British rule. His eloquent prose and philosophical ideas, particularly regarding individual rights and government by consent, have had a lasting impact on American political thought.
Jefferson's work was heavily influenced by Enlightenment thinkers, and he articulated the foundational principles of democracy, liberty, and the pursuit of happiness. While other founding fathers contributed to the document and the discussion around its creation, Jefferson's authorship is distinguished by the depth and clarity of his writing, which effectively captured the sentiments of the colonies at that time. His pivotal role in this historical moment has cemented his legacy as the primary author of one of the most significant documents in American history.