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such study is as follows:                              lcvels were countcd, 1 in Opcration [, 2 in
                                                       Operation III, 3 in Operation II ١d I in
 ‫ﺇ‬. Climatic variations can cither cxpnd or            Operation IV nd the rcst in the dccp trench.
     contract a given climatic 2one.                   No plan has bcen publisled in Opcration II
                                                       remains, the largcst complcx sccms to have bcen
2. Sea level determines the total land area            in Opcration I!
     available.
                                                            Diraz has yicldcd traces of architccture,
3. Fiuctuatiosn in ground water can change             in spite of the richncss of its dcbris, :and the
     the area of arable land, in addiiton, dating      total number of houscs probably did not cxceed
     of occupation sitse by ccrmamic scqucnce          5, providing for a p٠pulation of fe٧ pesron.s
    and of radiometirc methods potentially             There were no traces of any strecst, ut there
     fxes p٠ttemrs of settlements change in the        were open areas and houscs adjoined
    tempoarl sesne.                                    cach othcr on at least two sides. I٤
                                                       probably closely resembles the irreuglar
      THhis evening we shall consider those sites      lay-out of villages in the area today.
 in Baharin and neighbouirng countries, which          The walls were made of unshaped stones, on
 provide cvidence regarding the earliest culture,      rough illed foundations and plastering was
 in patricular, the Barbar phase of historical         used on both eternal and internal faces of the
 periods. The Barbar mound (containing three           walls. The houses were roughly
 stagse of temples) hsa been sclccted as a key         rcctilinear in plan with traces of
 site, beacuse in ist stratigrmphy an unbroken         roonms flanking a courtyard. One large house
 sequence of occup٠tion can be traced back to          had three internal partitiosn, but these may not
 an oirginal occupaiton in the early mid and late      have reached to the roof, The floosr were
bronze age itmse, reprcsented by fairly full           generally composed of packed silt on a bed of
assemblage of potteyr and objects, Compaartive         sand, it has been suggested that the roofs were
istse will therefore be discussed in their rela­       possibly Iow gables of brushwood and nmud as
tionship to hte sequence which it has produced.        in the villages today.
Amonsgt thsee is our site Diraz. This name             The houses contained storage bisn and ovens of
hsa been given to it after hte modemr village          which one example retained the plaster dome.
of Diar, which occupies a patr of the wsetenr          ln one house there were two doorways with
firnge of the oirginal area. The site lise about       a recessed jamb, presumably to take a door,
half a mile wtse of the Barbar mound notrh of          and a flat stone set behind the western w٥ll
the Budaia Road. It٤ was excavated by a                with a slit above, which might have served as
Bahiarin epediiton on behalf of the Mitsinyr           a corridor. Although the doorway concerned
of Eduaction duirng lats year.                         had no apputrenances, stone door sockets were
                                                       found in other parts of the site.
     A complete exacvaiton rep٠rt wsa not
published and the following usmmary hsa been                   Unfortunately these structures were, to
taken from hte account igven in the survey             some cxtent, destroyed by later periods, but
of hte iste, The oiignal area of the ancient           these traces of houses may possibly have com­
site si htought to have been about 10 acrse and        posed a village which suggest, according to the
sa muhc a‫ﺇ‬50 ‫ﻩ‬of hte whole aera has been lots          artefacst recovered that it was contemporary
through new villagse and gardesn which are             with Barbar asscnmblage. This would place it
located nearby • The total aera exposed by the         between 2500-2000 B.C. Among finds were
eracvaitosn wsa 7.50 qsuarem. about (40 qsuare         potsherds, stamp seals (known as Dilnmun
metres) were er‫ﺝ‬cavatetdo virgin soil at a depth       seals) copper-brone arrow and spear heads and
of (34) m.                                             a few picces of stone vessels.

     Dunirg hte ltsa ssaeon there were fou                   Diraz site is very important. It is the fisrt
arsae of exacvaitosn. Opearitosn I, II, III, IV        time htat a village hsa been located both relat­
and a deep ternch, the geratset thickness of the       ing to the Barbar temples and to the tremendous
dep٠٠٠twsa about 5 metrse and included three
sub - phsesa building levesl. A toatl of 3 floor

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