Eric Walker added 1854 Broad Street cholera outbreak - Wikipedia to 1854-08 Broad Street cholera epidemic

Eric Walker added The Bahá'i Chair for World Peace | The Great Pandemic and Lessons (we failed to learn) from History – Professor Joseph L. Graves Jr. to a number of topics

Eric Walker added 1854-08 Broad Street cholera epidemic and 1846–1860 cholera pandemic - Wikipedia to Third cholera pandemic, and added Third cholera pandemic to Cholera and Outbreaks, epidemics and pandemics

Eric Walker added 1854 Broad Street cholera outbreak - Wikipedia and The Bahá'i Chair for World Peace | The Great Pandemic and Lessons (we failed to learn) from History – Professor Joseph L. Graves Jr. to Broad Street cholera epidemic, and added Broad Street cholera epidemic to 1846 Third cholera pandemic