The basic pattern of life does not appear to have changed much under Roman rule, but our underst<strong>and</strong>ing of it has greatly increased over <strong>the</strong> last 25 years (see Radford, 1958). The round continued as <strong>the</strong> main (detected) settlement type (Fox, 1964), 148; Fowler, 1976). Thomas emphasised this continuity in 1966, <strong>and</strong> <strong>the</strong> lack of evidence of much Roman influence on basic life styles. The main evidence for <strong>the</strong> continuance of rounds comes from Castle Gotha (Saunders <strong>and</strong> Harris, 1982), occupied from <strong>the</strong> Later <strong>Iron</strong> <strong>Age</strong> to <strong>the</strong> 2nd/3rd century AD; Trevisker (ApSimon <strong>and</strong> Greenfield, 1972), with activity until <strong>the</strong> 2nd century, <strong>and</strong> possibly Mer<strong>the</strong>r Euny (Thomas, 1968). During <strong>the</strong> 2nd century a number of new rounds were constructed: Shortlanesend (Harris, 1980), Carwar<strong>the</strong>n (Opie, 1939; unpublished material now in Truro Museum), Crane Godrevy (Thomas, 1968a), possibly Kilhallon (Carlyon, 1982), <strong>and</strong> Trethurgy (Quinnell, forthcoming). Of <strong>the</strong>se, Shortlanesend <strong>and</strong> Kilhallon apparently had a short span of a century or so, <strong>and</strong> for Crane Godrevy only a small sample of pottery has been published (Thomas, 1964, 61). Carwar<strong>the</strong>n was occupied into <strong>the</strong> 4th century, Trethurgy into <strong>the</strong> 6th. The excavated sample is still small, but it is noteworthy that no round seems to have been continuously occupied from <strong>the</strong> <strong>Iron</strong> <strong>Age</strong> throughout <strong>the</strong> Roman period. Any dislocation in settlement patterns seems to have occurred in <strong>the</strong> 2nd century AD ra<strong>the</strong>r than <strong>the</strong> 1st (perhaps related to <strong>the</strong> ending of occupation of <strong>the</strong> small hillfort at St Mawgan-in-Pydar) <strong>and</strong> to have been a gradual occurrence. The reasons are obscure. Was <strong>the</strong>re some historical event leading to temporary decline in population? Were <strong>the</strong>re changes in agricultural practice, brought about by new dem<strong>and</strong>s or new techniques? Did <strong>the</strong> establishment of new administration centres <strong>and</strong> communication patterns (though no Roman roads have yet been proved for <strong>Cornwall</strong>) ultimately cause shifts in settlement? It need occasion no surprise that minor fortifications were allowed under <strong>the</strong> Roman administration. Even minor defences were regarded in <strong>the</strong> <strong>Iron</strong> <strong>Age</strong> as a symbol of status. It was regular Roman practice to integrate <strong>the</strong> local upper classes in <strong>the</strong> administrative, military <strong>and</strong> economic structure of <strong>the</strong> Empire, <strong>and</strong> to encourage <strong>the</strong>m to continue to look after <strong>the</strong>ir own areas. The building of new rounds, <strong>and</strong> more substantial rectangular enclosures, implies <strong>the</strong> continuance of local traditions of maintaining order, <strong>and</strong> not necessarily a specific threat. However <strong>the</strong>re could be a link between <strong>the</strong> construction of new rounds, after a gap of about one hundred years, <strong>and</strong> <strong>the</strong> construction of fortifications around towns which occurred at Exeter in <strong>the</strong> late 2nd century (Bidwell, 1980, 66). Cornish rounds have been compared to <strong>the</strong> raths or enclosed settlements of south-west Wales, but recent work in <strong>the</strong> latter area has shown a significant difference. There, all excavated earth-works were constructed before <strong>the</strong> Roman occupation; some continued in use, but no new works were built. Gradually <strong>during</strong> <strong>the</strong> Roman period <strong>the</strong> nature of <strong>the</strong>ir occupation changed, from dense concentrations of circular houses, to include single rectangular houses, as at Dan-y-Coed (Williams, 1985) <strong>and</strong> Walesl<strong>and</strong> Rath (Wainwright, 1971). This difference must reflect <strong>the</strong> longer presence of <strong>the</strong> Roman army in Wales <strong>and</strong> <strong>the</strong> establishment of an urban centre at Carmar<strong>the</strong>n. South-west Wales was left less to its local traditions than was south-west Engl<strong>and</strong>. In Dyfed <strong>the</strong>re are also several rectilinear enclosures, now proved to start in <strong>the</strong> <strong>Iron</strong> <strong>Age</strong> in <strong>the</strong> case of Pen-y-Coed, Llangynog (Murphy, 1983), though Llangynog II <strong>and</strong> possibly Castle Flemish were built in <strong>the</strong> Roman period (James <strong>and</strong> Williams, 1982, 299). The population of Roman Britain as a whole is now considered to have exp<strong>and</strong>ed rapidly, possibly even to around six million (Salway, , 1981, 554). It is reasonable to expect more later Roman sites in <strong>Cornwall</strong> than in <strong>the</strong> 1st to 2nd centuries. Dates given for sites which differ from those in <strong>the</strong> published reports are based on a current study of pottery from Carvossa (information P.M. Carlyon) <strong>and</strong> Trethurgy (Quinnell forthcoming), sites situated 15 km apart but which overlap chronologically to present a continuous sequence from <strong>the</strong> 1st century BC to 6th or 7th centuries AD. The number of rounds may have increased, <strong>and</strong> this increase may 124
AL •r, .4 •eakitiocto dp° • • • kir w..s..- ny o bo ,:7 4iVal■pAiii. 44,4,as• .. 40 • )1F• a 4 gal I . , ...;-__. 'Z1 •', so 443.-0 ; 0 Trethurgy T4 1. ..1.1'..1.,, , . ,...„,„,,, ...,„ n ‘Nip.p ca ,19. .. 033 411? -.4?). V Vio8;ks ... ' •°FliMeLft •■ •. q • 0 d'on 7.1_07L. OVv.elio e " ig1610 °,0 -791 '4;6 ...oz,,;%•,.- , . 4,1,goq • C.,,C) CIP Trebarveth 3 rvi 5 10 • ;',4;p'• el •• .44 A ■ Uob 11-* r • 9 • , Porth Godrevy Ft 0 10 20 30 Fig 4 Trethurgy Houses Z2 <strong>and</strong> T3, early 4th century AD; Grambla Building I (simplified,) 2nd century AD or later (after Saunders); Trebarveth 3, 3rd century AD (after Peacock); Porth Godrevv, 3rd century AD (after Fowler). 125 •