ced on : ▁A ▁Historical ▁and ▁Do ctr inal ▁Survey ' ', ▁( Lond on , ▁SP CK , ▁ 1 9 5 3 ). ▁ ▁External ▁links ▁▁ ▁Co ptic ▁interpret ations ▁of ▁the ▁Four th ▁E c umen ical ▁Council ▁ ▁Council ▁of ▁Chal ced on ▁ ▁Orth odox ▁Unity ▁ ▁The ▁U . S . ▁Oriental ▁Orth odox – R oman ▁Catholic ▁Cons ult ation ▁ ▁Category : 4 5 0 s ▁in ▁the ▁By z antine ▁Empire ▁Category : 5 th - century ▁Christian ▁church ▁coun c ils ▁Category : E c umen ical ▁coun c ils ▁Category : Christ ology ▁Category : Ch urch ▁coun c ils ▁accepted ▁by ▁the ▁Eastern ▁Orth odox ▁Church ▁Category : Ch urch ▁coun c ils ▁accepted ▁by ▁the ▁Catholic ▁Church ▁Category : First ▁seven ▁ec umen ical ▁coun c ils ▁Category : Ori ental ▁Orth odox y ▁Category : Sch isms ▁in ▁Christian ity ▁Category : The odos ian ▁dynast y ▁Category : B ith yn ia ▁Category : K ad ı kö y ▁Category : 4 5 1 <0x0A> </s> ▁Wal sh am ▁Ro cks ▁is ▁a ▁group ▁of ▁rocks ▁lying ▁ 1   na ut ical ▁mile ▁( 1 . 9   km ) ▁east ▁of ▁Buff ▁island , ▁at ▁the ▁south west ▁end ▁of ▁the ▁Pal mer ▁Arch ip el ago , ▁off ▁the ▁coast ▁of ▁Ant arct ica . ▁ ▁The ▁rocks ▁were ▁survey ed ▁by ▁the ▁British ▁Naval ▁H ydro graph ic ▁Survey ▁Unit ▁in ▁ 1