I think Theodore Roosevelt was the first to ride in a car, but it was before he was president. McKinley was the first sitting president to ride in a car.
Theodore was the first sitting president to leave the country. He visited Panama while he was president.
Theodore roosevelt
Andrew Jackson was the President in 1830 when the first US railroad , the B & O opened for business. Jackson was also the first sitting President to take a train ride.
President Lincoln.
Abraham Lincoln was the president during Abraham Lincoln's first term as president. He took over from James Buchanan, the 15th US President.
Memorial Day was originally called Decoration Day. It was first observed on May 30, 1868, three years after the US Civil War ended, to honor those of the military who had died during the Civil War. After World War I it was expanded to honor all who had died during any war or military action in which the United States had been involved and it generally became known as Memorial Day. But it was not until 1967 that President Lyndon Baines Johnson signed the legislation officially renaming the holiday from Decoration Day to Memorial Day.
William McKinley was supposedly the first president to play a round of golf. Taft played golf but not often when he was president but he likely was the first sitting president to play golf. Wilson certainly played golf while he was president, but not very well.
In March of 1807, President Jefferson issued a written statement roundly condemning the institution of slavery in the US. He was the first sitting president to do so before President Abraham Lincoln's time.
Memorial Day (originally called Decoration Day) was notoriginated by a president. General John Alexander Logan (who had been a Union general during the US Civil War and who was then national commander of the Grand Army of the Republic (a fraternal organization of veterans)) declared the holiday Decoration Day on May 5, 1868. It was first observed on May 30, 1868 when the graves of both Union and Confederate soldiers who had died during the Civil War were decorated with flowers. This was done in their honor. In 1967 Decoration Day was officially renamed as Memorial Day although that name had been in general use for many years.
Frankin Delano Roosevelt during his first term as president
three hoosier become president in 1800