I do not wanna say the wrong thing or youse the wrong words so the answer is on google I am 100% sure :)
Answer:
Explanation:
The first Hippodrome was built when the city was called Byzantium, and was a provincial town of moderate importance. In AD 203 the Emperor Septimius Severus rebuilt the city and expanded its walls, endowing it with a hippodrome, an arena for chariot races and other entertainment.
In 13 short years Alexander conquered a mere 3,000 miles which stretched from Greece, through the Middle East, and to Central Asia and the Indian subcontinent.