521 B.C.
Cambyses, King of Persia dies, Darius The Great takes over.
512 B.C.
Expedition to Scythia, Darius loses
500 B.C.
Aristagoras invades Naxos, second Persian loss.
Ionians revolt with help from Athens and Eretria.
498 B.C.
Sardis is burned, men are slaughtered, women and children are sold into slavery.
Naval battle between Persia and Greeks.
490 B.C.
Battle of Marathon, Greeks win.
6,400 Persians killed vs. 192 Greek deaths.
486 B.C.
Darius dies, his son Xerses, takes over.
480 B.C.
Xerses travels by land to Thermopylae.
Battle at Thermopylae (Persians win thanks to a traitor)
Leonidas and his brave Spartans are slaughtered.