If you sell to the Hispanic market, you might be interested in the “5 de mayo fiesta”, the History.com website has a good summary of the commemoration. Keep in mind thay in Mexico it is only a historic date, not as important as “15 de septiembre” but in the US  it is more celebrated with commercial offers, parades, parties and even some Mariachi performances and regional dancing as well. The commemoration is tomorrow… check the history.com