Day of Mourning Most people don’t know that in 1912, Hellmann’s® Mayonnaise was also manufactured in England. The RMS Titanic was carrying 12,000 jars of the condiment scheduled for delivery in Vera Cruz, Mexico, which was to be one of the next ports of call for the great ship after it's stop in New York City. The people of Mexico eagerly awaited the first delivery and were very upset at the news of the ship's sinking. So much that they declared a national day of mourning, which they still observe today. The Holiday is known, of course, as: 'Sinko de Mayo'.