Pandemics in history are large disease outbreaks that spread across countries or continents. These events have occurred at different times and affected millions of people. They are recorded in both historical and scientific data.

The Black Death in the 1300s spread across Europe, Asia, and North Africa, reducing populations in many regions. More recently, COVID-19 began in 2019 and spread worldwide. These outbreaks are tracked using medical records and data.

Pandemics are studied in history and science through documents, charts, and health reports. They show how diseases have spread across populations over time.