1950
Born to Lubumbashi, Congo, to Frederic May and Valentine (Van der Vennet) May.
1973
Earns a BA in modern history at the Catholic University of Louvain.
1975
Teaches at various high schools in Brussels, Belgium, until 1976.
1976
Is married to Anne Marrie Legrand; Is an associate expert in demography for the U.N. in Haiti until 1979.
1980
Is an adviser in demography and population statistics of the South Pacific Commission for the U.N. until 1983.
1980
Is a member of the International Union for the Scientific Study of Population through today.
1984
Is a member of the Population Association of America through today.
1985
Earns an MA in demography at the Catholic University of Louvain; Is a training coordinator for the IUSSP until 1986.
1987
Immigrates to the United States; Is associated with The Futures Group International until 1997.
1996
Earns a PhD in demography at Université René Descartes, Paris (Sorbonne).
1997
Serves as a population specialist on the African Region for the World Bank until 2012.
2000
Earns numerous World Bank Spot Awards until 2008.
2002
Is a member of the Union for African Population Studies through today.
2007
Earns the Chief Economist’s Best Practice Award from the World Bank.
2008
Is an adjunct professor at Georgetown University until 2019.
2012
Publishes “World Population Policies: Their Origin, Evolution and Impact,” which earns a Global Medica Award.
2018
Is a senior fellow of the Population Institute in Washington, D.C., until 2021.
2020
Is a research professor at the Schar School of Policy and Government of George Mason University through today.
2021
Is an honorary professor of the Institute of Tropical Medicine until 2023.
2022
Co-edits the “International Handbook of Population Policies” (Springer).