"Pho originated in the early 20th century in northern Vietnam,apparently southeast of Hanoi in Nam Ðinh Province, then a substantial textile market.
The traditional home of pho is reputed to be the villages of Vân Cù and Dao Cù in Ðông Xuân commune, Nam Truc District, Nam Ðinh Province.
According to villagers, pho was eaten in Vân Cù long before the French colonial period when it was popularized.
Pho was originally sold at dawn and dusk by roaming street vendors, who shouldered mobile kitchens on carrying poles.
From the pole hung two wooden cabinets, one housing a cauldron over a wood fire, the other storing noodles, spices, cookware, and space to prepare a bowl of pho."