How were the elections different in 1800 than they are today?

Well the only constitutional change that resulted from the election of 1800 was the twelfth amendment requiring separate electoral votes for president and vice president. First election where both parties ran candidates and actually campaigned. There was a tie between Thomas Jefferson and Aaron Burr. Because of the election of 1800, the 12th Amendment was passed, making the ElectoralCollege simpler.