Three worldwide (pandemic) outbreaks of influenza. occurred in the 20th century: in 1918, 1957, and 1968. The. latter 2 were in the era of modern virology and most thor-. oughly characterized. All 3 have been informally identified. by their presumed sites of origin as Spanish, Asian, and.
Just south of the Vietnam Veterans Memorial Wall is the Vietnam Womenâs Memorial, which serves to commemorate the 265,000 women that served in the Vietnam War, many of whom worked as nurses.
Exchange Currency. Vietnamese Dong. The Äá»ng has been the currency of Vietnam since May 3, 1978. Issued by the State Bank of Vietnam, it is represented by the symbol â«. Formerly, it was subdivided into 10 hÃ o, which was further subdivided into 10 xu, neither of which is now used.