- The longest family tree in the world is that of Confucius, a Chinese philosopher. It has around 2 million members!
- If family trees go back eight generations, then most people will have approximately 256 ancestors!
- People have been making family trees for a long time! In Japan, it is believed that the ancestry of the Imperial family began to be traced during the 5th century.
- The Old Testament of the Bible also includes a family tree, with a record of the descendants of Adam and Eve.
- The family tree is used by genetists- medics that studies human DNA to prevent gene-related diseases, like Alzheimer.