Bạch Mã Temple, the oldest temple in Hanoi’s Old Quarter, traces its origins back to the year 1010, during the reign of Emperor Lý Thái Tổ. It is one of four sacred temples in the city, constructed to stand as a spiritual guardian for the eastern side of ancient Thang Long (modern-day Hanoi) and was carefully chosen according to the principles of geomancy and the cardinal points.