TheFirst
MilitarySlaveSystem 143WhenMarwnb.Muh.
ammad(laterMarwanII)invadedAr-
meniainthe
early120/740s,he
signedmanytreatieswith
sepa-ratelocalrulers;inFut.h
al-Bulclfin,al-Baldhfrimentionsninein
all.In
threeofthemthe
conqueredpeopleagreedto
supplyslavesandwheat
everyyear; intwo
theyagreedtodeliver
anumberofslaves
justonceand
henceforthto
paywheat
yearly;and
intheotherfour
theyhadnoslavestodeliver.
21Thissmallselection
seems
typicalofthe treaties which Muslimssignedeverywhere;
most
ofthementailedthe
deliveryofsomeslaves.Ononeoccasion,whenhereceived
a
singleblack
ghulm,Mar-
wan
IIis
supposedtohavesentbackascornful
reply:"If
youhadfound
acolorworsethanblackandanumberlessthan
one,you
wouldhave
sentthat!’’22The
baqt,atreatybetweentheMuslimsandtheNubiansmade
in31/652,wasthemostconfused
andthemostremarked
uponagreementforthe
deliveryofslavestothe
Muslims.23Itre-mainedineffectfor
oversixcenturies,until674/1276;24during
this
longperioditstermswere
changed,butthesealterationswere never
clearlydistinguished,
sothe
historianhas
manystrata to
separate.Y.F..Hasan’s
analysisconcludes
thattheoriginalagreementstipulatedannualNubian
delivery
ofslavesin
exchangefor
provisions.6Of
allthe
reporteddeliveriesofslaves,
onlyoneexplicitlyin-dicatesthattheslaveshada
militarypurpose;
ineither125/743or
128/746,theUmayyad
governor
of
Iraqrequestedfromthe
governor
of
Khurasan,
Nas.rb.
Sayyfir,1,000armedandmounted21.FB,
pp.208-09.22.
Jah,p.81;UA,
p.235.23.On
the
baqt,besidesthereferencesinY.F.H.asan,TheArabsand
theSudan(Khartoum,1973),pp.219-21,seealsoKhalifa,
p.
138;Ibn
al-Faqih,p.76;IbnKhurdadhbih,p.83;Michael,3:90-94,360;andHill,
Termination,pp.
43-44.- F.Loekkegaard,"Ba.kt,"inEl
gives
thisenddate.Proofthat
this,unlikemostotheraccords,remainedin
effectafterthefallofthe
Umayyads
comesfrom
thefactthatboththe
caliphs
al-Mahdiandal-MuCtasim
adjusteditsterms.Hasan,TheArabs,
pp.25-26).25..Hasan,TheArabs,
pp.24-25.26.
Ibid.,pp.20,25.