0_Wizard
Humans domesticated horses back around 4000 BC.  I want to someday have a racehorse!
Humans began to domesticate horses around 4000 BC, and their domestication is believed to have been widespread by 3000 BC.
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Horse
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Horse
The horse ("Equus ferus caballus") is one of two extant subspecies of "Equus ferus". It is an odd-toed ungulate mammal belonging to the taxonomic family Equidae. The horse has evolved over the past 45 to 55 million years from a small multi-toed creature, "Eohippus", into the large, single-toed animal of today. Humans began to domesticate horses around 4000 BC, and their domestication is believed to have been widespread by 3000 BC. Horses in the subspecies "caballus" are domesticated, although some domesticated populations live in the wild as feral horses. These feral populations are not true wild horses, as this term is used to describe horses that have never been domesticated, such as the endangered Przewalski's horse, a separate subspecies, and the only remaining true wild horse.
Domestication of the horse
A number of hypotheses exist on many of the key issues regarding the domestication of the horse. Although horses appeared in Paleolithic cave art as early as 30,000 BCE, these were wild horses and were probably hunted for meat. How and when horses became domesticated is disputed. The clearest evidence of early use of the horse as a means of transport is from chariot burials dated c. 2000 BCE. However, an increasing amount of evidence supports the hypothesis that horses were domesticated in the Eurasian Steppes approximately 3500 BCE; recent discoveries in the context of the Botai culture suggest that Botai settlements in the Akmola Province of Kazakhstan are the location of the earliest domestication of the horse.
Horse behavior
Horse Behaviour has been studied by horse users for centuries, as the horse was one of the first animals mankind domesticated and understanding its behaviour has always been important in horse welfare and in training to get the best use out of a horse. In the wild, horses are prey animals that live in herds, which affects their reactions to other horses and to the world around them. Their behaviour in wild, feral conditions has been studied extensively as has their reactions to living and working in domestic situations. Interactions with other horses, such as dominance and communication methods has been studied extensively and numerous books and videos exist on different aspects of horse behaviour.
Proto-Indo-European homeland
The Proto-Indo-European homeland (or Indo-European homeland) is the prehistoric "urheimat" of the Indo-European languages—the region where their reconstructed common ancestor, the Proto-Indo-European language (PIE), was originally spoken. From this region subgroups of speakers migrated and went on to form the proto-communities of the different branches of the language family. The majority of Indo-European specialists support the Kurgan hypothesis, which puts the PIE homeland in the Pontic-Caspian steppe around 4000 BC, though critical issues remain to be clarified. The major alternative theory was the Anatolian hypothesis, which put it in Anatolia around 8000 BC, but this theory has lost support due to the explanatory limitations of this theory.
Wild horse
The wild horse ("Equus ferus") is a species of the genus "Equus", which includes as subspecies the modern domesticated horse ("Equus ferus caballus") as well as the undomesticated tarpan ("Equus ferus ferus", now extinct), and the endangered Przewalski's horse ("Equus ferus przewalskii"). Przewalski's horse had reached the brink of extinction but was reintroduced successfully back into the wild. The tarpan became extinct in the 19th century, though it is a possible ancestor of the domestic horse; it roamed the steppes of Eurasia at the time of domestication. However, other subspecies of "Equus ferus" may have existed and could have been the stock from which domesticated horses are descended.
Equus (genus)
Equus is a genus of mammals in the family Equidae, which includes horses, asses, and zebras. Within Equidae, "Equus" is the only recognized extant genus, comprising seven living species. The term equine refers to any member of this genus, including horses. Like Equidae more broadly, "Equus" has numerous extinct species known only from fossils. The genus most likely originated in North America and spread quickly to the Old World. Equines are odd-toed ungulates with slender legs, long heads, relatively long necks, manes (erect in most subspecies) and long tails. All species are herbivorous, and mostly grazers with simpler digestive systems than ruminants but able to subsist on lower quality vegetation.
Przewalski's horse
The Przewalski's horse ( ; ; Khalkha , "takhi"; Ak Kaba Tuvan: [] "dagy"; "Equus ferus przewalskii") or Dzungarian horse, is a rare and endangered subspecies of wild horse ("Equus ferus") native to the steppes of central Asia. At one time extinct in the wild (in Mongolia, the last wild Przewalski's horses had been seen in 1966), it has been reintroduced to its native habitat in Mongolia at the Khustain Nuruu National Park, Takhin Tal Nature Reserve, and Khomiin Tal. The taxonomic position is still debated, and some taxonomists treat Przewalski's horse as a species, "Equus przewalskii". Common names for this equine include "takhi", "Asian wild horse" and "Mongolian wild horse", The horse is named after the Russian geographer and explorer (of Polish ancestry) Nikolay Przhevalsky (Polish name: Mikołaj Przewalski).
1_Apprentice
OK a race horse? What type of horse are used in racing?