This property defines approval of Symbols as Unicode in version 7.0 in 2014
Characters like Ϳ,Ԩ,ԩ, etc. are listed under 7.0 Age.
2834 Characters are present in 7.0 Age starting with the Unicode point U+037F that represents the character Ϳ.
Currently, as per latest version 15.0.0, Unicode supports 26 number of Age. Here are a few examples - 1.1,10.0,11.0, etc.