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Nguyen, Minh Thang & Swenson, Ingrid Elizabeth (1996). Variations in Vietnamese Marriages, Births and Infant Deaths by Months of the Julian Calendar and Years of the Vietnamese and Chinese Astrological Calendars. Journal of Biosocial Science, 28(3), 367-377.


The timing of births and marriages in Vietnam appears to have some statistically significant relationships with the signs of the Chinese and Vietnamese astrological calendars. Years considered to be good years have significantly more births and marriages than years that are not considered as desirable. Births and marriages also have some significant variations with seasons of the year. Infant deaths do not appear to have any significant relationships with the astrological signs although infant mortality has some significant relationships with seasons of the year. The findings indicate that there is some purposeful planning for marriages and births to coincide with optimal times defined in the astrological calendars.


Reference Type

Journal Article

Year Published


Journal Title

Journal of Biosocial Science


Nguyen, Minh Thang
Swenson, Ingrid Elizabeth