Why did the Persians attack Athens around 490BC?

Darius was a young leader for his time which also meant great drive, motovation, determination, and strength on behalf of himself. Usually this personality often results into general conflict, argument, or even war. In his case however, war. His young, inexperienced mindset brought him down a brutal violent road. Self restrictantcy was the key to all sucsess, and obviously, juding by his character, he did not meet these standards. Another theory for this historical attack was to gain revenge from the Persians. About 30 years before his reign, Persia had led an attack on southern Greece trying to gain acsess to the coast. This was unsucsessful and led to great arousal by Darius. For more questions or thoughts to my response, please be sure to send me a message at hockey1045@aim.com