In pagan times the runic alphabet was the only one used in Norway. The preserved inscriptions from that time are mostly short memorial dedications or magical formulas. One of the longest inscriptions is that on the 8th century Eggjum stone, containing cryptic religious or magical allusions. Around the years 1000 to 1030, Christianity became established in Norway, bringing with it the Latin alphabet. The oldest preserved Norwegian prose works are from the mid-12th century, the earliest are Latin hagiographical and historical texts such as "Passio Olavi", "Acta sanctorum in Selio", "Historia Norwegie" and "Historia de Antiquitate Regum Norwagiensium". At the end of the 12th century, historical writing expanded to the vernacular with "Ágrip af Nóregskonungasögum" followed by the "Legendary Saga of St. Olaf" and "Fagrskinna".