Phillip of Macedaon gave him invented the Macedonian phalanx and left his son the worlds best army as well as all of his plans to invade persia before he got assasinated, So he was given everything he needed
Julius caesar had to beat crassus and pompey before he could get to invading other countries. Also after alexander the great's death his empire fell apart but julius caesar's line went until the emperor claudius.
all magnets have a north and south pole, and the magnetic currents flow from north to south. but the north pole of earth is actually the magnetic south pole.
