The ride of our lives: why the horse is crucial to human history / Siberian burial site with 18 sacrificed horses may reveal mysterious origin of ancient warrior culture / Researchers discover there was an overseas trade supplying horses for sacrifices during the late Viking age / Saturday Tips: Four horses to follow / Horses that bolted through capital to feature in Trooping the Colour / Widespread horse-based mobility arose around 2,200 BCE in Eurasia / Horse remains show Pagan-Christian trade networks supplied horses from overseas for the last horse sacrifices in Europe