<Ul> <Li> Persecution in China </Li> <Li> Ad Sinarum gentem </Li> <Li> Cupimus Imprimis </Li> <Li> Ad Apostolorum principis </Li> <Li> Ignatius Kung Pin - Mei </Li> <Li> Beda Chang </Li> <Li> Dominic Tang </Li> </Ul> <Li> Persecution in China </Li> <Li> Ad Sinarum gentem </Li> <Li> Ad Apostolorum principis </Li>

Who wrote letters to many early christian communities