48 a.d. The Romans build a fort at Lincoln.
60 a.d. The Roman 9th Legion built a second fort
71 a.d. The 9th Legion moved to Eboracum (York)
80 a.d. Town becomes a major settlement for retired legionaires, a Colonia.
c.150 a.d. Forum (with lifesize equestrian statues), basilica and public baths were erected. The population is between 6,000 and 8,000. The town is extended down to the river, almost doubling its physical size. The upper part was mainly residential, the lower part was commercial and south the river was industrial. An aqeduct was built running from near Nettleham to supply the growing population.
c.200 a.d. Stone walls are built.
c.300 a.d. Lindum becomes capital of the province of Flavia Caesariensis when the province of Britannia Interior was subdivided
367 a.d. First invasion of Lincoln by Picts and Scots
c.400 a.d. Lindum begins to decline, by the end of the century the town was virtually deserted