The Buddha
Not many people know but Buddhism is one of the world’s oldest and largest religions. Regardless there are many questions that surround its founder, Siddhartha Gautama (aka the Buddha). Historical information about the Buddha did not actually start to appear until many centuries after his assumed death. And as we are dealing with ancient history, hard evidence of his actual existence has not been found yet. However, others say that it has been lost entirely.
Laozi
Who exactly is Laozi? Lao Tzu was an ancient Chinese philosopher and writer. He is also the author of the Tao Te Ching and the creator of philosophical Taoism. Nevertheless, due to many conflicting stories about his life, modern philosophers have started to question his existence. They assume that Taoist writings actually came from various different sources and not just a single man. But those who strongly believe in him honor his figure.