A Brief Introduction to Thomas Jefferson Thomas Jefferson (1743-1826)is best remembered as a great President and as the author of the Declaration of Independence.He also won lasting fame as a diplomat,a political thinker, and a founder of the Democratic Party. A Brief Introduction to Thomas Jefferson ⚫ Thomas Jefferson (1743-1826) is best remembered as a great ___________ and as the author of the __________of Independence. He also won lasting fame as a diplomat, a_____________, and a founder of the Democratic Party. President Declaration political thinker