Several works of engineering, such as baths, temples, bridges, roads, circuses, theatres and laymen's homes are preserved throughout the country. Coins, some coined in Lusitanian land, as well as numerous pieces of ceramics, were also found. Contemporary historians include Paulus Orosius (c. 375–418) and Hydatius (c. 400–469), bishop of Aquae Flaviae, who reported on the final years of the Roman rule and arrival of the Germanic tribes.