top 10 deadliest pandemic ever in history

1. Plague of Justinian
The Plague of Justinian (541–542 AD, with recurrences until 750 )
2. Black Death
3. The Great Plague of London
During the Great Plague of London (1665-1666)
4. Smallpox
5. Cholera
6. Spanish Flu
The Spanish flu, also known as the 1918 flu pandemic
7.Asian Flu
In the 20th century, the second major influenza pandemic was the Asian flu of 1957 (aka the “Asian flu pandemic”).
8. Antonine Plague
One of the deadliest pandemics in history is also one of the oldest. The Antonine Plague occurred in 165–180 and ultimately took the lives of about five million people.
9. Russian Flu
The Russian flu (aka “Asiatic flu”) 1889
10. Leprosy - The Middle Ages