Here are some topics and presidents you can study that would help with this assignment.
Teddy Roosevelt (1901-1908) - Preservation of national parks and forests. - Meat Inspection Act: This helps to protect American consumers from businesses who were previously selling tainted meat. - Panama Canal- This important waterway connected the Atlantic and Pacific Ocean.
Abraham Lincoln (1861-1865) - Emancipation Proclamation - Lead Union to win in the Civil War. - 13th amendment- This gets rid of the institution of slavery in the United States.