Thomas jefferson contributed to the development of the democratic ideals in the united states by:

Thomas Jefferson was the third president of the United States of America, occupying the position between 1801 and 1809. He is considered one of the founding fathers of the nation.

His eminence is given because he was the principal author of the Declaration of Independence of the United States of 1776. Jefferson was one of the most influential Founding Fathers, known for his promotion of the ideals of republicanism in the United States. He anticipated the vision of the United States of America as the endorsement of a great "empire of freedom" that promoted democracy around the world.

As a political philosopher, Jefferson was a man of the Enlightenment and knew many intellectual leaders in Britain and France. He idealized the small independent landowner as an example of republican virtues, distrusted cities and financiers, and favored the rights of states and a strictly limited federal government. Jefferson also supported the separation of Church and State.

b. the 200th birthday of the united states