Villagers in the United States and Mexico first began to drink caffeinated drinks in 750 AD.
Patricia Crown and colleagues used a combination of liquid chromatography and mass spectrometers to analyze organic residues in 177pottery samples found in 18 locations in Arizona, Chihuahua, Colorado and New Mexico. These findings reveal that villagers living in the strip from southern Colorado to northern Chihuahua first began drinking caffeinated drinks as early as 750 AD and extended to at least 1400 AD.
The analysis identified traces of caffeine, theobromine and theophylline, the ingredients of stimulating drinks, most likely made from cocoa or medlar leaves and branches. These stimulating drinks are likely to be consumed at ceremonial occasions rather than every day, similar to the practice of other North and South American people at that time.
The findings may provide insights into relationships and trade between geographically distant North Americans, the authors say. Villagers in the United States and Mexico first began drinking caffeinated drinks as early as 750 AD (mysterious Earth Picture)
(mysterious Earth report) according to EurekAlertudes: villagers living in long strips from southern Colorado to northern Chihuahua, Mexico, started drinking caffeinated drinks as early as 750 AD.
In the years since archaeologists found cocoa residues in pottery in Chaco Canyon in New Mexico, researchers have questioned the time depth and geographical scope of the cocoa exchange between the southwestern United States / northwestern Mexico and Central American populations in the pre-Spanish period.
- Prev
Starbucks cashier was fired for embezzlement of customer credit cards
A cashier at a Starbucks store in Lakewood, California has been fired for stealing customers' credit cards. It is reported that when the customer Juana Martinez (Juana Martinez) checked out at this point on the day of the incident, a young female cashier said that the paper printed on the cashier's receipt had been used up and she needed to pick it up and took the customer's credit card. The next day, Juana received
- Next
Starbucks'"medium Cup incident" fermented on the Internet
In the field of coffee, Starbucks has always been the maker of the rules of the game, and its deep insight into the consumer mentality has always made Starbucks invincible. For example, this summer Starbucks launched cold-extracted coffee, which is known as the top of the coffee disdain chain. Although the price is several yuan higher than ordinary coffee, high specifications, limited quantities and positioning still make cold-extracted coffee a second grab. Recently, Starbucks launched cold coffee.
Related
- What does Coffee combo mean? What coffee beans are most suitable for Combo? What is the best ratio of latte to American in coffee combo?
- Can you make coffee with 5g of beans? What is the minimum number of grams of coffee beans used for hand-brewed coffee? What brewing plan should I use for less flour?
- Why do Japanese people like to make coffee with flannel? What is the difference between flannel filter cloth and filter paper cup? What are the characteristics of flannel filter cloth for making coffee?
- A coffee shop drives customers out on the spot?! Store: No Chinese people are accepted
- Children suffocated and died after drinking pearl milk tea! Parents: The store did not inform the risk
- Can I put a thermos in a thermos pot to keep my coffee warm? Why does coffee not taste so good after it cools down? What is the most suitable amount of milk for latte?
- How to make coffee cream? Do I have to use instant powder for 400 hand-made coffee? What is the composition of coffee cream in Naples coffee?
- What is an authentic cappuccino? How to make cappuccino golden circles? What is the ratio of coffee to milk in a cappuccino?
- Can espresso beans be used to make hand-brewed coffee? What is the difference between Italian mixed beans and hand-made single beans? What are the characteristics of SOE coffee beans?
- Big battle! Mixue Ice City has opened three stores in the United States?!