▁ 土 ▁at ▁Wik tion ary ). ▁ ▁The ▁Western ▁( ear ly ▁modern ) ▁al chem ical ▁symbol ▁for ▁earth ▁is ▁a ▁down ward - point ing ▁triangle ▁bis ected ▁by ▁a ▁horizontal ▁line ▁( <0xF0> <0x9F> <0x9C> <0x83> ). ▁Other ▁symbols ▁for ▁the ▁earth ▁in ▁al ch emy ▁or ▁myst ic ism ▁include ▁the ▁square ▁and ▁the ▁ser pent . ▁ ▁The ▁planet ▁In ▁the ▁Roman ▁period , ▁the ▁glo be , ▁a ▁representation ▁of ▁the ▁spher ical ▁Earth , ▁became ▁the ▁main ▁symbol ▁representing ▁the ▁concept . ▁The ▁glo be ▁dep icted ▁the ▁" un iverse " ▁( p ict ured ▁as ▁the ▁cel est ial ▁sphere ) ▁as ▁well ▁as ▁the ▁Earth . ▁ ▁The ▁glob us ▁cru c iger ▁( <0xE2> <0x99> <0x81> ) ▁is ▁the ▁glo be ▁sur mount ed ▁by ▁a ▁Christian ▁cross , ▁held ▁by ▁By z antine ▁Em per ors ▁on ▁the ▁one ▁hand ▁to ▁represent ▁the ▁Christian ▁ec um ene , ▁on ▁the ▁other ▁hand ▁the ▁Ak ak ia ▁represented ▁the ▁mort al ▁nature ▁of ▁all ▁men . ▁ ▁In ▁the ▁medieval ▁period , ▁the ▁known ▁world ▁was ▁also ▁represented ▁by ▁the ▁T - and - O ▁figure , ▁representing ▁an ▁extremely ▁simplified ▁world ▁map ▁of ▁the ▁three ▁classical ▁contin ents ▁of ▁the ▁Old ▁World , ▁viz . ▁Asia , ▁Europe ▁and ▁Africa . ▁ ▁Unicode ▁ ▁has ▁introduced ▁a ▁four ▁characters ▁representing ▁the ▁" g lo be " ▁in ▁the ▁Mis cell aneous ▁Symbol s ▁and ▁P ict ograph s ▁block :