Extending the Phytolith Evidence for Early Maize (Zea Mays Ssp. Mays) and Squash (Cucurbita Sp.) in Central New York Author(S): John P
Total Page:16
File Type:pdf, Size:1020Kb
Society for American Archaeology Extending the Phytolith Evidence for Early Maize (Zea mays ssp. mays) and Squash (Cucurbita sp.) in Central New York Author(s): John P. Hart, Hetty Jo Brumbach and Robert Lusteck Source: American Antiquity, Vol. 72, No. 3 (Jul., 2007), pp. 563-583 Published by: Society for American Archaeology Stable URL: http://www.jstor.org/stable/40035861 . Accessed: 04/01/2015 15:01 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. Society for American Archaeology is collaborating with JSTOR to digitize, preserve and extend access to American Antiquity. http://www.jstor.org This content downloaded from 128.227.157.72 on Sun, 4 Jan 2015 15:01:10 PM All use subject to JSTOR Terms and Conditions EXTENDING THE PHYTOLITH EVIDENCE FOR EARLY MAIZE (Zea mays ssp. mays) AND SQUASH (Cucurbitasp.) IN CENTRAL NEW YORK John P. Hart,Hetty Jo Brumbach,and RobertLusteck The timing of the adoptions of maize and squash across eastern North America has been a topic of long-standing interest among archaeologists and paleoethnobotanists.The use offlotation for macrobotanicalremains beginning in the 1960s and 1970s coupled with the application of accelerator mass spectrometrydating beginning in the 1980s has led to substantial ' revisions of knowledge about the history of these crops in the region. A complementarysource of evidencefor the crops histories in the easternNorth America comes from opalphytoliths.Analysis ofphytolith assemblages recoveredfrom charred food residues has shown that maize and squash were being used in central New Yorkwell before the macrobotanicalrecord indicates. In combination with previously analyzed samples, 16 additional residue assemblages help to clarify the history of maize and squash in central New York.The results indicate that maize and squash were being used in New Yorkby 2270 B.R and 2945 B.R, respectively. El fechamientode las adopciones del maiz y la calabaza a traves del este de Norte America ha sido un topico de interespor muchotiempo para arqueologosypaleobotdnicos. La utilizaciondel metodode flotac ion para restosmacrobotdnicos comenzo en los 1960s y 1970s, emparejocon la aplicacion delfechamiento por Aceleradorde Espectrometrode Masa, el cual comenzo en los 1980s, esto ha llevado a revisionessubstanciales en el conocimientoacerca de la historia de estos cultivos en la region. Unafuente complementariade evidenciapara las historias de los cultivos en el este de Norteamericaproviene defitolitos de opalo. Andlisis de colecciones defitolitos en residuosde alimentos han demostradoque el maiz y la calabazafueron utiliza- dos en el centrode Nueva Yorkmucho antes de lo que el recordmacrobotdnico indica. En combinacioncon muestrasprevia- menteanalizadas, 16 colecciones de residuos adicionales ayudan a clarificar la historia del maiz y la calabaza en el centro de Nueva York.Los resultadosindican que el maiz y la calabazafueron utilizados en Nueva Yorken 2270 B.R y 2945 B.R, respectivamente. the histories of agricultural in easternNorth America through the systematic crops has been an important focus of recoveryof macrobotanicalremains (e.g., Struever Determiningarchaeological and paleoethnobotanical 1962).The flotationrevolution was enhancedin the researchin easternNorth America for decades (e.g., 1980s with the advent of acceleratormass spec- Asch andHart 2004; Blakeand Cutler 2001 ; Craw- trometry(AMS) dating,which allows directdat- ford and Smith 2003; Ford 1985; Fritz 1990; ing of key cropremains (e.g., Adair2003; Conard Gilmore 1931; Green 1994; Hart,ed. 1999; Kee- et al. 1984; Crawfordet al. 1997; Fritzand Smith gan 1987; Minnis 2003; Riley et al. 1990; Scarry 1988; Hartet al. 2002; Riley et al. 1994). 1993; Smith 1992; Woods 1992; Yarnell 1964). However,because of the vagariesof macrobot- The flotationrevolution beginning in the 1960s anical preservation,a complete understandingof (Chapmanand Watson 1993) led to substantialrevi- crop historiesrequires complementary sources of sions in ourknowledge of cropsand their histories evidence(Hard et al. 1996;Hart 1999a). One such John P. Hart Researchand Collections Division, New YorkState Museum, 3140 CulturalEducation Center, Albany, NY 12230. ([email protected]) Hetty Jo Brumbach Departmentof Anthropology,University at Albany, SUNY, Arts & Sciences Building, Room 237, 1400 WashingtonAve., Albany,NY 12222. ([email protected]) Robert Lusteck Departmentof Anthropology,University of Minnesota,395 HubertH. HumphreyCenter, 301 19th Ave. S., Minneapolis,MN 55455. ([email protected]) AmericanAntiquity, 72(3), 2007, pp. 563-583 Copyright©2007 by the Society for AmericanArchaeology 563 This content downloaded from 128.227.157.72 on Sun, 4 Jan 2015 15:01:10 PM All use subject to JSTOR Terms and Conditions 564 AMERICAN ANTIQUITY [Vol. 72, No. 3, 2007] source of evidence comes from opal phytoliths Forthe present study, we analyzedan additional (Pearsall 1982; Rovner 1983). Analysis of phy- 21 residuesamples of which 16 (76.2 percent)pro- tolithsto helpbuild regional crop histories has been ducedphytolith assemblages. This bringsthe total done extensively in Centraland South America numberof samples analyzedto 33, 24 (72.7 per- (e.g., Pearsall 1978; Pearsallet al. 2003; Piperno cent) of which have producedphytolith assem- 2004; Pipernoet al. 1985; Pipernoand Flannery blages.These assemblages come from 12 sites that 2001; Piperno and Pearsall 1998; Piperno and spana periodof some 2,500 years,from among of Stothert2003 ; Stallerand Thompson 2002 ; Thomp- the earliestassemblages of potteryin theNew York son 2006). Fewer studieshave focused on eastern Stateuntil the last centuries before massive changes NorthAmerica (e.g., Bozarth 1987, 1990, 1993; in Native American lifeways that resulted from Thompsonet al. 1994), especiallyeast of the Mis- interactionswith Europeans.The resultsshow that sissippiRiver (Starna and Kane 1983). maize was being used in New Yorkby 2270 ± 35 Recently,using methodsand techniques devel- B.P. (cal 2a 399-208 B.C.) and squashby 2905 ± oped by Robert Thompson, we have begun to 35 B.P. (cal 2a 1256-998 B.C.). explorethe potentialof phytolithsrecovered from AMS dated residues to directly cooking adhering Methods and Techniques theinterior of potterysherds to obtainbetter under- standingsof the historiesof maize (Zea mays ssp. AMS mays) and othercrops such as squash(Cucurbita Dating sp.) in centralNew York(Hart et al. 2003; Thomp- Residuesampling was done underlow magnifica- son et al. 2004). Ourpreliminary results from five tion (generally lOx) using a dissection probe to sites have shown that cooking residuesfrom this carefullyremove the residue from each sherd's inte- region are productivesources of phytolithassem- rior surface.The amountof residue sampledfor blages and implied that maize and squash were AMS assay has ranged from 4.0 to 56.7 mg. being used much earlierin centralNew Yorkthan Approximately1 mg of carbonfollowing pretreat- the macrobotanicalrecord has suggested. ment is needed to obtain an AMS date. Carbon Ourprevious results indicated maize use in the yields, following standardchemical pretreatments regionfrom 1960 ± 28 B.P. (cal 2a 39 B.C.-A.D. at the Illirois StateGeological Survey (ISGS) Iso- 119) through 1221 ± 16 B.P.(cal 2a A.D. 718-880), tope GeochemistrySection, ranged from 18.5 per- and squashfrom the 1515 ± 27 B.P. (cal 2a A.D. cent to 61.64 percent (Table 1). As these high 434-613) through 1228 ± 42 B.P. (cal 2a A.D. carbonyields becameevident, in general,we sub- 681-889), both well before the earliestconfirmed mittedsmaller samples for AMS datingin the pre- macrobotanicalevidence in the region (Hartet al. sent project than we did in the earlier projects. 2003; Thompsonet al. 2004). Ourimmediate goal Followingchemical pretreatments and target prepa- for the currentproject was to extendthe temporal ration,ISGS submittedthe samplesto the Oxford coverage.We soughtto extendour analysis so that RadiocarbonAccelerator Unit (ISGS nos. below we had a more-or-lesschronologically continuous A0452) or LawrenceLivermore National Labora- series of samples from the end of the prehistoric tory (ISGS nos. A0452 and above)for assay. sequence, when maize and squash are known to Wecalibrated all of theresulting 14C ages, along havebeen staple crops (Asch and Hart 2004; Engel- with those obtained earlier, with CALIB 5.0 brecht2003; Funkand Kuhn 2003), to earliertimes (Reimeret al. 2004; Stuiverand Reimer 1993). In when the use of maize in New Yorkhad only pre- ouranalysis of the resultswe rely primarilyon cal- viously been speculatedon but not documented ibrated2a ranges.We also reportthe medianprob- throughthe verifiedrecovery of maize macrobot- abilityfor each date.Telford et al. (2004; also see anical remains(e.g., Ritchie 1944, 1969; Ritchie Stuiveret al. 2005) demonstratethat the median and Funk 1973; see Hart and Brumbach2003). probabilityis a morereliable representation of the This would also extendto times when squashhad calibratedradiocarbon date than are calibration been identifiedthough macrobotanical remains in curve intercepts.For dates from the same site