<Li> Passed the House on December 21, 1807 (82--44) with amendment </Li> <Li> Senate agreed to House amendment on December 22, 1807 ((((agreedvote3)))) </Li> <Li> Signed into law by President Thomas Jefferson on December 22, 1807 </Li> <Tr> <Th_colspan="2"> Major amendments </Th> </Tr>

Who implemented an economic embargo in 1807 in an effort to avoid war