1754 - William Barton is a US army officer in American Revolution was born 11th of April in Philadelphia, Pennsylvania.
1775 - Went to England, where he studied heraldry.
1779 - Returned to Pennsylvania and was admitted to the bar of the Supreme Court of Pennsylvania.
1781 - Married Elizabeth Rhea, niece of Continental Congressman Jonathan Bayard Smith.
1781 - Barton published Observations on the Nature and Use of Paper Credit.
- University of Pennsylvania awarded him an honorary Master of Arts degree.
1785 - College of New Jersey (later known as Princeton University) followed suit.
1786 - Barton published The True Interests of the United States and particularly of Pennsylvania considered with Respect to the Advantages Resulting from a State Paper Money.
1787 - Barton was elected to Benjamin Franklin's American Philosophical Society.
1800 - William moved back to Lancaster.
1802 - Published a lengthy treatise entitled A Dissertation on the Freedom of Navigation and Maritime
Commerce and such Rights of States Relative Thereto, as are founded on the Law of Nations.
1813 - Barton published Memoirs of the life of David Rittenhouse.
1817 - William Barton died 21st of October in Lancaster.
William Barton designed Great Seal of Unites States of America.
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