@http://celebritywc.com/film/around-the-world-in-80-days.html:
When Fogg is stuck in San Francisco as a beggar, you can see on the wall behind him a poster advertising the mineral water "Hunyadi Janos". Named after a 15th century Hungarian general, this water had been discovered in 1862 and introduced to the US around the 1880's, whereafter the Hunyadi water became a widely used laxative for the next couple of decades. In fact, you can also note the word "laxative" on the poster.