American president Thomas Jefferson (Democratic-‐Republican party) led Congress to pass the Embargo Act of 1807. Effects on American shipping and markets: Agricultural prices and earnings fell. Shipping-related industries were devastated.
The United States of America didn't want to become involved in another alliance. This concern led some in the US Senate not to accept the ratification of the Treaty of Versailles as well as the Covenant for the League of Nations.<span> </span>
<span>A complex system of writing.</span>
The 13th, 14th, and 15th amendments were important additions to the constitution because they were created to give equality and aimed mainly towards African-Americans and slaves from he civil war