Happy Valley: All Data
Happy Valley is a city in Vietnam. This page covers its chronology of mentions across 5,500 years of history, including capitals, battles, events and subdivisions. Part of Phersu Atlas.
1. Lists and Timelines
Happy Valley: Chronology of Mentions
Note: For polities of antiquity, the listed capital or subdivision capital may also represent one or several of the most important cities of the region.
1968 AD
Mentioned in: Operation Henderson Hill, part of Vietnam War