A consequential act of defiance secured tea's place as perhaps the most iconic beverage of America's colonial era.
The Boston Tea Party became an essential ingredient in the recipe for revolution in the following years.
But tea wasn't the only hot beverage with a prominent role in America's fight for independence.
Coffee was an important part of American culture from the start. And coffeehouses were essential, too — serving as hubs for brewing ideas of independence.
As the United States celebrates 250 years, here's what to know about America's early history of coffee.
Colonists were drinking coffee long before the United States existed
Europeans brought coffee with them when they came to America.
"The first documented example of a mortar and pestle used to grind coffee beans was on the Mayflower" in 1620, says historian Michelle Craig McDonald, the author of Coffee Nation: How One Commodity Transformed the Early United States.
"The fact that coffee was present so early is not surprising if you think about it," McDonald says. "A number of those who were on the Mayflower came to North America from Amsterdam, which was a major coffee trading center in Western Europe by the 17th century."
The first coffeehouse in the colonies opened in 1676 in Boston, a century before the U.S. declared independence, she says. Some taverns sold coffee even earlier.
The Boston Tea Party probably wasn't the dramatic turning point toward coffee that some claim
On the night of Dec. 16, 1773, disgruntled colonists boarded three ships moored in Boston Harbor and threw overboard more than 92,000 pounds of tea owned by the British East India Company.
Tensions had been building between the Crown and the colonies over the previous decade, as Britain tried to levy taxes on its colonies to recoup war debts.
The Boston Tea Party protest was targeted at the British government's passing of the Tea Act in 1773, which granted the East India Company a monopoly over tea sales in the colonies. While the British had removed some unpopular taxes in the preceding years, they left tea taxes in place. Colonial merchants were especially upset that the act allowed the East India Company to undercut their tea business.
To build solidarity for their cause of sovereignty, some patriots called on colonialists to swear off tea in favor of coffee. It's why many histories point to the Boston Tea Party as a turning point when Americans switched from mostly drinking tea to mostly coffee. The anti-tea sentiment was immortalized in a founding father's now-famous letter.
In July 1774, John Adams (before he became the second U.S. president) wrote to his wife Abigail, recounting an incident during his travels. After a long day, he asked the proprietor of the house where he was lodging for a cup of tea, provided it was smuggled and free of British taxes.
" 'No sir, said she, we have renounced all Tea in this Place. I cant make Tea, but I'le make you Coffee.' Accordingly I have drank Coffee every Afternoon since, and have borne it very well. Tea must be universally renounced. I must be weaned, and the sooner, the better," Adams wrote.
Despite John Adams claiming a newfound patriotic duty to appreciate coffee, McDonald says colonists had been drinking lots of coffee all along.
She studied advertisements from the 1760s and '70s to estimate how many shops sold coffee versus tea. Even before the Boston Tea Party, she says, "coffee is definitely more broadly available than tea is."
A big reason? It was cheaper. "Its price again per pound is significantly less, which tells you about its availability, its accessibility to drinkers."
Historians say it's hard to definitively compare tea with coffee consumption, though, as official records from before America gained independence were inconsistent.
And smuggling was rampant, making official records even less reliable.
"There is a vast amount of smuggling," says Joyce Chaplin, a professor of early American history at Harvard University. "So they're not paying formal duties on tea that they get from the Dutch. They're probably not paying formal duties on coffee from the French Caribbean."
And Chaplin notes that people who loudly proclaimed a new appreciation for coffee over tea weren't always doing what they said. It could have been political pandering. "I do not drink tea that comes via the East India Company," she posits someone of the era saying. "But, you know, other sources are fine. Ditto for the coffee."
Coffeehouses were a hub for revolutionary ideas
In the colonial era, coffeehouses were hotbeds for seditious thought — where people planned acts of revolution.
"Coffeehouses are kind of famous for being places where people think and plot things," says Mark Pendergrast, author of Uncommon Grounds: The History of Coffee and How It Transformed Our World.
A coffeehouse called the Green Dragon served as one of the locations for planning the Boston Tea Party. Years earlier, the Old London Coffeehouse in Philadelphia was a meeting place for strategizing responses to another British tax, the Stamp Act of 1765.
In Britain, coffeehouses were nicknamed "penny universities," Pendergrast says: "because for a penny you could go and learn a whole lot by sitting around in a coffeehouse and discussing everything." The same attitude traveled across the Atlantic.
Early American coffeehouses would commonly have city business directories, libraries of newspapers and currency exchange information. People could get maritime insurance there or buy things at auction.
"There's a reason why coffeehouses become places of colonial protest … in the 1760s, in the 1770s, and it's because it is the place where traders and merchants tended to gather," historian McDonald says. "That's where they heard about the economics of the day."
Taverns were more likely than coffeehouses to have rooms for rent and stables for travelers' horses. They were also more likely to have food.
Interestingly enough, coffeehouses could serve alcohol and taverns could serve coffee.
But the vibes at each were different. While women and men could "riotously drink together" in taverns, coffeehouses often didn't allow women, according to Chaplin of Harvard.
"The sense was the coffeehouse was the place where you had a clear head — to argue about politics, to find out what was going on in the business world, to cut a business deal," she says. "Whereas taverns were places where, in a sense, you refueled."
Still, she says, the lines between the two "weren't completely clear."
The cost of America's revolutionary drink
Coffee (and tea for that matter) was part of a growing globalization of trade around this time.
Much of the coffee in the colonies was grown in the Caribbean, while tea came from China.
Supply was up and coffee was easier than ever to drink. "Trade and frankly, imperialism, are making it possible for … colonial products to be produced and transferred to other parts of the world in greater and greater quantities," says Chaplin.
As a result, by the time of the American Revolution, both coffee and tea were in reach for many common people. "They're both becoming affordable luxuries," Chaplin says.
Fancy coffee and tea paraphernalia were also part of this increasingly global market. Middle and upper-class people would have wanted special implements for drinking these beverages and a place to drink it. That meant they needed wood for coffee tables, silver for coffeepots, and porcelain for teapots.
"These two beverages are encouraging people to consume all kinds of new stuff," says Chaplin. "The mahogany that comes out of the Caribbean, the china coming out of China, silver that is mined principally in South and Central America and processed in a lot of the parts of the world."
There's a dark side to coffee's history, too. The plantations that supplied the crop ran on the labor of enslaved people. By 1790, half of the world's coffee was being grown in the French colony of Saint-Domingue, in what is today Haiti, Pendergrast says, where slaves were routinely mistreated, raped and murdered.
The Declaration of Independence, signed in 1776, is infamous for a contradiction. It proclaimed that "all men are created equal," but failed to acknowledge the hundreds of thousands of enslaved people living in America at the time.
Coffee carried a similar contradiction. The beverage that fueled conversations that inspired America's fight for independence — centered on the ideals of life, liberty and the pursuit of happiness — depended on enslavement.
"Coffee had this paradoxical effect, that it did promote revolutionary thought," Pendergrast says. "But it was also grown by slaves."
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