Buddha, also known as Siddhartha Gautama, was a spiritual leader and founder of Buddhism. He was born in Nepal in the 6th century BCE to a royal family, but he lived a life of luxury until he left his palace to seek enlightenment. After years of wandering and meditation, he attained enlightenment at the age of 35 under a Bodhi tree.

Buddha's teachings focused on the Four Noble Truths and the Eightfold Path. The Four Noble Truths are: suffering exists, suffering arises from craving and attachment, suffering can be overcome, and the path to the end of suffering is the Eightfold Path. The Eightfold Path consists of right view, right intention, right speech, right action, right livelihood, right effort, right mindfulness, and right concentration.

Buddha's teachings have had a profound impact on the world. Buddhism is one of the world's major religions, with over 500 million followers worldwide. It has influenced art, literature, and philosophy in many cultures. Its emphasis on compassion and mindfulness has inspired many to live more peaceful and compassionate lives.

In conclusion, Buddha was a spiritual leader who founded Buddhism, taught the Four Noble Truths and the Eightfold Path.