Does 'This explains the presence in Guangzhou of the Huaisheng Mosque, reputed to be China's oldest, and traditionally dated a.d. 627.' neither support nor refute 'The Huaisheng Mosque is China's youngest mosque.', instead existing independently?
This explains the presence in Guangzhou of the Huaisheng Mosque, reputed to be China's oldest, and traditionally dated a.d. 627.###The Huaisheng Mosque is China's youngest mosque.