▁places ▁she ▁tra ve led ▁to , ▁from ▁her ▁European ▁h one ym oon ▁to ▁Spain , ▁Russia , ▁Singapore , ▁China , ▁India , ▁South ▁America , ▁and ▁her ▁favorite ▁country , ▁Egypt . ▁She ▁used ▁to ▁live ▁in ▁Philadelphia ' s ▁R itten house ▁Square . ▁In ▁January ▁ 2 0 1 4 , ▁The ▁R itten house ▁Square ▁F lower ▁Market ▁for ▁Children ' s ▁Char ities ▁( RS FM CC ) ▁recognized ▁its ▁ 1 0 0 th - year ▁anni versary ▁with ▁a ▁joint ▁birth day ▁bash ▁also ▁celebr ating ▁Gordon ' s ▁ 1 0 0 th ▁birth day . ▁Times ▁puzz le ▁editor ▁Will ▁Short z ▁attended ▁Gordon ' s ▁ 1 0 0 th ▁birth day ▁party ▁in ▁Philadelphia . ▁Gordon ▁had ▁an ▁extensive ▁personal ▁library ▁of ▁reference ▁books . ▁On ▁January ▁ 2 9 , ▁ 2 0 1 5 , ▁Gordon ▁died ▁of ▁heart ▁failure ▁at ▁the ▁age ▁of ▁ 1 0 1 . ▁ ▁Notable ▁puzz les ▁ ▁Use ▁of ▁symbols ▁and ▁signs ▁ ▁On ▁Sunday , ▁May ▁ 3 0 , ▁ 1 9 6 5 , ▁Gordon ▁made ▁puzz le ▁history ▁by ▁introdu cing ▁a ▁convention - b ust ing ▁puzz le ▁with ▁answers ▁including ▁' CO W BO YS & IN DI AN S ', ▁' C AR M EN ▁M IR & A ', ▁and ▁' SC & IN AV IA ', ▁using ▁am pers and ▁signs ▁in ▁place ▁of ▁letters . ▁ ▁This ▁is ▁now ▁a ▁common