Battle of Gaugamela main Persian infantry was poorly trained and equipped in comparison to Alexander's pezhetairoi and hoplites. The only respectable infantry Darius had were his 2,000 Greek hoplites and his personal bodyguard, the 10,000 Immortals. The Greek mercenaries fought in a phalanx, armed not with a heavy shield but with spears no longer than three metres, while the spears of the Immortals were two metres long. Among the other Persian troops, the most heavily armed were the Armenians, who were armed the Greek way and probably fought as a phalanx. The rest of Darius' contingents were much more lightly armed; the main
Valley of the Thracian Rulers Valley of the Thracian Rulers The Valley of the Thracian Rulers is a popular name which was made public by the archaeologist Georgi Kitov and describes the extremely high concentration and variety of monuments of the Thracian culture in the Kazanlak Valley. It is believed that there are over 1500 funeral mounds in the region, with only 300 being researched so far. The Kazanlak Tomb was discovered in 1944. Between 1948 and 1954 the ancient town of Seuthopolis was studied. Between the 1960s and the 1980s people made researches of the mound necropolis which belonged to residents of Sevtopolis. Another