Recently, scientists made an amazing discovery in the Munger district of Bihar, India. They found a banyan tree that is about 700 years old. This makes it the oldest banyan tree in the world with an exact, scientifically proven age.
Moving Past Myths and Stories
For a long time, people relied on local stories and myths to guess how old big trees were. Some people thought this specific tree, located near a historic British building, was only 300 to 350 years old. But science showed that the tree was actually there long before the building was even built. It is a leftover piece of a very ancient forest.
Finding its exact age is important because it takes away the guesswork. We no longer have to rely on stories; we have real proof.
The Problem with Banyan Trees
Usually, scientists figure out a tree’s age by looking inside its trunk and counting its rings. Normally, one ring means one year of growth.
However, this trick does not work for tropical trees like the banyan. Banyan trees do not grow clear, yearly rings, making the traditional counting method completely useless.
A Clever New Way to Find the Age
To solve this problem, a team of scientists in Lucknow came up with a highly precise new method. Here is how they did it:
Finding the Center: They took a small piece of wood from the very center of the tree, known as the “pith.” Because it is at the center, it represents the oldest part of the tree that grew first.
Extracting a Special Chemical: From this wood, they separated a specific component called alpha-cellulose. This part of the plant cell is very stable and does not change chemically over time, making it perfect for finding the exact age.
High-Tech Testing: They used a special test called radiocarbon dating on the alpha-cellulose. By using advanced computer software and radio frequencies, they could tell exactly when that part of the tree started growing.
Other Ancient Trees Around the World
Even though 700 years is incredibly old for a tropical banyan, there are other types of trees around the world that are much older. Some examples include:
Methuselah: A pine tree in California, USA, that is over 4,800 years old. It is the oldest known living tree of its kind.
Sarv-e Abarqu: A special cypress tree in Iran that is between 4,000 and 4,500 years old.
Llangernyw Yew: A yew tree in Wales, UK, that is estimated to be between 4,000 and 5,000 years old.
Gran Abuelo: A giant tree in a national park in Chile that is at least 3,600 years old.
Jōmon Sugi: A tree in Japan that is estimated to be anywhere from 2,100 to 7,000 years old.
Why This Matters
Figuring out the exact age of the Munger banyan tree is a huge win for science in India. It gives researchers a reliable new way to study old, tropical trees. Thanks to this new method, we will likely discover and verify the ages of many more ancient trees in the future.