In 1933, the US Congress created National Maritime Day to recognize the maritime industry in the United States. The date chosen to celebrate the new holiday was May 22, in honor of the day that the auxiliary packet ship Savannah sailed from its namesake city in 1819. The Savannah is credited as the first steamship to cross the Atlantic Ocean.
Bragging rights notwithstanding, if one is to be honest about the history, Savannah was neither a proper steamship nor did she actually cross the Atlantic under steam. She was built as a sailing packet ship and did have a 90 HP steam engine installed which drove twin paddle wheels, but she didn’t carry enough fuel to make the passage under steam power. On the eastbound voyage across the Atlantic, the Savannah used her engine for 80 hours in a voyage of 29 days and 11 hours. On the westbound voyage, which lasted 40 days, she did not use her engines at all.