The wealthiest man is not easy to identify except the definition of wealth is given. However, am still of the opinion that the wealthiest is the person with heart of love, good family, sound health and satisfactory. A greedy man never satisfy even as Billionaire.
@ Nicolai Nypan is correct that it can be hard to separate wealth from power. I would look for an absolute ruler of a large geographic region having an abundance of natural resources and a large population, wherein there may be nominal private property, but ultimately everything is really owned by the ruler, even the populace, who would have slave-commodity value. Queen Victoria wouldn't qualify, but maybe one of the Chinese emperors?
Alexander the Great who inherited the immense gold reserves of the Persian Empire (gold originated in the mines of today's Tajikistan, Uzbekistan, Turkmenistan and Kyrgyzstan - in the so- called "Tien Shan Gold Belt" and has the world's biggest gold mines.
Theon of Alexandria was a Greek geometer and astronomer who lived in Alexandria in the fourth century ce. His work was devoted to Euclid and Ptolemy. Of Euclid's work Theon edited the Elements, the Data and possibly the Optics.Keywords:Greek history;history of science;medicine and technology;science
Toothpicks found in the Ur region (Mesopotamia), dating from the Sumerian period (3000 B.C.), are evidence of the existence of alveolar atrophy at that time, encouraged by the retention of alimentary debris in the interdental spaces (Wolley).*