. ▁Pre histor ic ▁H ort icult ure ▁in ▁Illinois : ▁Acc eler ator ▁Rad i oc ar bon ▁D ating ▁of ▁the ▁Ev idence . ▁University ▁of ▁Ro chester ▁N uc lear ▁Str ucture ▁Research ▁Labor atory ▁Report ▁ 5 7 . ▁ ▁References ▁ ▁External ▁links ▁ ▁http :// www . geo . uni - t ue b ingen . de / en / work - groups / pre history - arch ae ological - sci ences / inst itut / ear ly - pre history - and - qu atern ary - ec ology . html ▁ ▁http :// www . geo . uni - t ue b ingen . de / en / work - groups / pre history - arch ae ological - sci ences / ear ly - pre history - and - qu atern ary - ec ology / st aff - directory / prof - n ich olas - j - con ard - ph d / curr icul um - v ita e . html ▁ ▁Category : L iving ▁people ▁Category : 1 9 6 1 ▁birth s ▁Category : American ▁arch ae olog ists <0x0A> </s> ▁I HR D ▁may ▁refer ▁to : ▁ ▁Institute ▁of ▁Human ▁Resources ▁Development , ▁Ker ala , ▁India ▁International ▁Hol oca ust ▁Rem emb rance ▁Day <0x0A> </s> ▁The ▁World ▁Cot ton ▁Cent enn ial ▁( also ▁known ▁as ▁the ▁World ' s ▁Indust rial ▁and ▁Cot ton ▁Cent enn ial ▁Ex position ) ▁was ▁a