An Ancient mosque has been found in Bangladesh. It is known as ‘Harano Masjid’ (Bengali)which translates to Lost Mosque. It was found some 27 years ago in a village Ramdas unmder Panchgram Union of Lalmonirhat Porishad.
The mosque is originally dated to 627 CE and later rebuilt in 690CE. The Prophet Muhammad(Peace be upon him) died in Madinah at 632 CE.
Saad bin Abi Waqqas conquered Iraq and Persia at time of Caliph Umar bin Al Khattab bring end to the Sassanid Empire. This lasted 4 centuries and was one of the longest.
The mosque is said be dated to 69 Hijrah of Islamic calendar.
Islam in China
Islam has been brought to China also by Saad bin Abi Waqqas. He is uncle and one of the greatestr companions of the Prophet Muhammed(pbuh). The tomb of Saad bin Abi Waqqas is in Guangzhou, China.(according to some)