The First Horseman by H.G. Wells — Read

Now, in the days when Ugh-lomi killed the great cave bear there was little trouble between the horses and men. Indeed, they lived apart-- the men in the river swamps and thickets, the horses on the wide grassy uplands between the chestnuts and the pines. Sometimes a pony would come straying into the clogging marshes to make a flint-hacked meal, and sometimes the tribe would find one, the kill of a lion, and drive off the jackals, and feast heartily while the sun was high. These horses of the old time were clumsy at the fetlock and dun-coloured, with a rough tail and big head. They came every spring-time north-westward into the country, after the swallows and before the hippopotami, as the grass on the wide downland stretches grew long. They came only in small bodies thus far, each herd, a stallion and two or three mares and a foal or so, having its own stretch of country, and they went again when the chestnut trees were yellow and the wolves came down the Wealden mountains.

It was their custom to graze right out in the open, going into cover only in the heat of the day. They avoided the long stretches of thorn and beechwood, preferring an isolated group of trees, void of ambuscade, so that it was hard to come upon them. They were never fighters; their heels and teeth were for one another, but in the clear country, once they were started, no living thing came near them, though perhaps the elephant might have done so, had he felt the need. And in those days man seemed a harmless thing enough. No whisper of prophetic intelligence told the species of the terrible slavery that was to come, of the whip and spur and bearing-rein, the clumsy load and the slippery street, the insufficient food, and the knacker's yard, that was to replace the wide grass-land and the freedom of the earth.