Buddhism was largely (or totally) eliminated from many of the nations that are now Muslim, such as Afghanistan, Pakistan, etc. It was also largely eliminated from India, though some scholars believe that this was mostly the work of Muslims, rather than Hindus.
Buddhism has largely been eliminated in India, where it originated, due to historical factors such as the rise of Hinduism and later Islamic conquests. While Buddhism still exists in India, its influence and number of adherents have significantly declined over the centuries. In contrast, countries like Japan, China, and Tibet still have substantial Buddhist populations and practices, despite facing various challenges.
The British commonwealth of nations is largely composed of nations which were once part of the British empire.
Africa.
Christianity, Buddhism, Sikhism, Islam, Judaism, & First Nations Spirituality.
Originally to India's near neighbours but over time to most of the nations of the world.
The civilizations teaching that were eventually translated into Latin so that the Western European nations could study them was Buddhism. Buddhism is a religion that has a variety of traditions, beliefs, and practices.
There are Buddhists of almost nationalities. The only exceptions are nations where there is no freedom of religion, such as many Muslim countries.
Originally to India's near neighbours but over time to most of the nations of the world.
Buddhism started in India. It was based on the sayings and teachings of Siddhartha Gautama, who is largely known as The Buddha. Buddhism became a major world religion as it spread throughout Asia over hundreds of years and as it eventually was adopted in the West with increasing popularity.
Although it originated in India/Nepal and often associated with Asia, Buddhists and Buddhism are present throughout the world and is one of the faster growing religions in many western nations.
Today, Buddhism is probably least evident in many of the Muslim nations. Countries like Saudi Arabia, outlaw any religion other than Islam.