关于1970wasdeclaredInter的百科

• October15，1970wasdeclaredInternationalWhiteCaneSafetyDa...

• 问题详情：October15，1970wasdeclaredInternationalWhiteCaneSafetyDay（IWCSD）forthefirsttimebythePresidentoftheInternationalFederationoftheBlind（IFB）．ThisdatewasadoptedatthefirstconventionoftheIFB，heldinColomboonOctober4，1969．Theobjectof theexerciseistoenablethege...
• 2021-09-1917138