According to the folk etymology of cup of Joe, the term may be named after Josephus Daniels. In 1913, President Woodrow Wilson appointed Daniels to be Secretary of the U.S. Navy.
The story goes that Daniels instituted several reforms, including banning alcohol from U.S. Navy ships. With the booze gone, coffee became the strongest drink available to sailors. And then over time, it became known as a cup of Joe.
Java is another slang word for coffee. It is named after the main Indonesian island, which is one of the most densely populated areas in the world. Coffee is grown abundantly on Java.
When craving a cup of muddy water, many of us head to Starbucks, which got its start in Seattle in 1971. The three founders of the largest coffeehouse company in the world were an English teacher, a history teacher, and a writer. This may explain the company’s name. Starbuck is a character in “Moby-Dick.” He is a Quaker from Nantucket who is a first mate aboard the Pequod.