Innocents Abroad (aka The New Pilgrim's Progress) by Mark Twain began as a series of travel letters written mainly for a San Francisco paper that sponsored Mr. Twain's trip to Europe and the Holy Land in 1867. It was published as a subscription book on July 20th, 1869.
[photo by Randy Mayor for Cooking Light]
Make yourself some delicious ginger limeade to celebrate this day in travel history. Ginger is a traditional treatment for nausea. My favorite limeade recipe is from Madhur Jaffrey's World-of-the-East Vegetarian Cooking. Makes one tall glass. Quoted from the book, page 343:
5 tablespoons freshly-squeezed lime juice
4 tablespoons sugar [I would add 'or to taste']
1/4 to 1/2 teaspoon finely grated ginger
Mix the lime juice and sugar in a small bowl. Put the grated ginger in a small strainer. Lower the bottom of the strainer into the sweetened lime juice. Stir the ginger around with a spoon. (The ginger will still be in the strainer.) Lift up the strainer and discard any remaining ginger pulp (there may not be much). Pour the ginger-flavored lime concentrate into a tall glass. Add 2/3 cup water and a few ice cubes. Stir. [savor]_____
 At the beginning of the trip, many of the travelers became seasick. Years after reading the book, I found out that the word "yacht" comes from the Dutch word "jacht" -- meaning to throw up violently. I think that's pretty darn funny.