Spend a week in Vietnam and the street names start to repeat. You stayed on Le Loi in Hue, crossed Tran Hung Dao in Hanoi, and now Ho Chi Minh City has both, plus a Hai Ba Trung, a Nguyen Hue and a Ly Thuong Kiet, which you are sure were in Da Nang as well. They were. Vietnamese cities name their main streets after the same set of national heroes, in a pattern that was deliberate, and learning a dozen of them turns every city map into a short course in two thousand years of resisting invasion.
The pattern and where it came from
Vietnamese street names are drawn from a national list of heroes, dynasties, battles and dates, applied city by city after independence, so that the same names recur from Hanoi to the delta. The French had named the streets after French soldiers and administrators. After 1954 in the north and 1975 in the south, those names were replaced with Vietnamese ones, and the ones chosen were the figures a unified country wanted everyone to know.
The result is that the biggest street in most towns is named for a general who defeated the Chinese or the Mongols.
The pattern is not identical everywhere. Hanoi's Old Quarter keeps its medieval guild names, Ho Chi Minh City keeps a few French scientists, and every town adds its own local heroes. But the core list is national, and you will see it on every map.
How to read an address
Vietnamese addresses put the house number first and the street name after it, and an address with a slash, such as 123/4, means house 4 in the alley that opens at number 123. The word for street, đường or phố, often appears before the name on signs and is dropped in speech.
The ancient resistance
Hai Ba Trung, the Trung sisters, led a revolt against Chinese rule in the year 40 and ruled for about three years before the Chinese returned; their name is on a major street in every city and they are the emblem of Vietnamese nationhood and of its women. Ba Trieu, a woman who led another rising two centuries later, usually has a street nearby.
Ngo Quyen won the battle on the Bach Dang river in 938 that ended a thousand years of Chinese rule, and his name marks that ending.
Hung Vuong, the legendary founding kings, give their name to the broad ceremonial avenue in many towns, and to the public holiday in the spring when the nation commemorates them.
The dynasties
Ly Thai To founded Thang Long, today's Hanoi, as the capital in 1010, and his statue stands beside the lake there. Ly Thuong Kiet was his dynasty's great general against the Song. Tran Hung Dao turned back three Mongol invasions in the thirteenth century, the last with the same trick of stakes in the Bach Dang river, and his is perhaps the most universal street name of all. Le Loi drove out the Ming in the 1420s, and Nguyen Trai was the scholar and strategist beside him. Le Thanh Ton, the Le dynasty's greatest emperor, extended the country south into Champa in the fifteenth century.