https://en.m.wikipedia.org/wiki/Chi_Rho https://en.m.wikipedia.org/wiki/Chi_Rho Even the abbreviation has a history. And a couple Unicode symbols: and ⳩ (weir

https://en.m.wikipedia.org/wiki/Chi_Rho https://en.m.wikipedia.org/wiki/Chi_Rho Even the abbreviation has a history. And a couple Unicode symbols: and ⳩ (weirdly, one displays in HN and the other does not.)