Question: Who opened the first pho stand in Hanoi?
About the article "Pho", section "History".

Candidate passages:
Pho originated in the early 20th century in northern Vietnam, apparently southeast of Hanoi in Nam Định Province, then a substantial textile market.
The traditional home of pho is reputed to be the villages of and (or ) in Đông Xuân commune, Nam Trực District, Nam Định Province.
According to villagers, pho was eaten in 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.
Pho vendors kept their heads warm with distinctive, disheveled felt hats called '.
Hanoi's first two fixed pho stands were a Vietnamese-owned Cát Tường on Cầu Gỗ Street and a Chinese-owned stand in front of Bờ Hồ tram stop.
They were joined in 1918 by two more on Quạt Row and Đồng Row.
Around 1925, a Vân Cù villager named Vạn opened the first "Nam Định style" pho stand in Hanoi. ""
declined in number around 1936–1946 in favor of stationary eateries.
Wat Pho, being the center of Thai medicine and massage for centuries, opened the Wat Pho Thai Traditional Medical and Massage School in 1955 on the temple grounds, the first such school approved by the Thai Ministry of Education.
Wat Pho offers four basic courses of Thai medicine: Thai Massage, Thai Midwife Nurse, Thai Pharmacy, and Thai medical practice.  
Pho (pronounced variously as , , , or ; from , pronounced ) is a Vietnamese noodle soup consisting of broth, linguine-shaped rice noodles called "", a few herbs, and meat.
Pho is a popular street food in Vietnam and the specialty of a number of restaurant chains around the world.
It is primarily served with either beef or chicken.
The Hanoi and Saigon styles of pho differ by noodle width, sweetness of broth, and choice of herbs.
The origin of pho and its name is a subject of scholarly debate.
A related beef noodle soup, "bún bò Huế", is associated with Huế in central Vietnam. 
"Dir", directed, "pho", photographed; "pro", produced.
"The Artist's Horse".
20 minutes, for "The South Bank Show", 1978.
"Dir, pho, pro" "Beehives and Runaway Wives".
For the Discovery Channel, 2002.
"Dir, pho" "Bull Magic".
For "Under the Sun" (BBC) and National Geographic, 1994.
"Dir, pho, pro" "Dances with Llamas".
50 minutes, for "Under the Sun" (BBC), 1997.
"Dir, pho, pro" "Empty Quarter".
50 minutes, for "Journeys" (BBC), 1996.
"Dir, pho" "Fat Fiancees".
For the Discovery Channel, 2005.
"Dir, pho" "Finite Oceans".
1995.
"House of the Spirits".
For the Discovery Channel.
"Dir, pho" "How Does It Feel?".
Pictures that Move, 1976.
"Pho" "Månen är en grön ost".
72 minutes, Stiftelsen Svenska Filminstitutet, 1977.
"Pho" "Mud and Water Man".
For the BBC, 1973.
"Pho" "A Mysterious Death".
49 minutes, for the BBC, 1999.
"Dir, pho" "Now Is the Hour".
1970.
"Dir" "The Painter and the Fighter".
For "Survival" (Anglia), 1996.
"Dir, pho" "Queen of the Elephants".
90 minutes, for the Discovery Channel, 1994.
"Pho" "The Search for Shangri-La".
50 minutes, for the BBC and PBS.
"Dir, pho" "Stick Fights and Lip Plates".
50 minutes, for the Discovery Channel.
"Dir, pho" "Sunday Pursuit" (or "Love at First Sight").
25 minutes, 1990.
"Pho" "The Tide of War."
50 minutes, for National Geographic, 1991.
"Pho" "Up North".
1970.
"Dir" "Vincent the Dutchman".
50/52/60 minutes, for "Omnibus", 1972.
(Winner of a BAFTA award for "Television: Specialised Programme" in 1973.)
"The Witchdoctor's New Bride".
50 minutes, for the Discovery Channel, 2005.
"Dir, pho" "Women of the Yellow Earth".
50 minutes, 1994.
"Dir, pho"  
Wat Pho, being the center of Thai medicine and massage for centuries, opened the Wat Pho Thai Traditional Medical and Massage School in 1955 on the temple grounds, the first such school approved by the Thai Ministry of Education.
Wat Pho offers four basic courses of Thai medicine: Thai Massage, Thai Midwife Nurse, Thai Pharmacy, and Thai medical practice.
Wat Pho is often acknowledged as the home, source, and center not only for Thai Foot Massage, but also for Thai Massage in general.
Thousands of students from around the world study at Wat Pho and subsequently go on to found or work in massage, spa, and wellness centers in many countries.
The Ministry of Education and The Ministry of Public Health of Thailand have approved numerous massage schools throughout the Kingdom, most of which include Thai Foot Massage – or foot reflexology – in their curricula.