Plague of Justinian

The Plague of Justinian was a massive epidemic of plague. It occurred between AD 541 and AD 549. This outbreak affected the Mediterranean Basin, Europe, and the Near East. It specifically impacted the Byzantine Empire and the Sasanian Empire. This event marked the beginning of the first plague pandemic. This pandemic continued through several waves until the middle of the 8th century. Some historians believe this entire period was one of the deadliest in history. They estimate that 15 to 100 million people died during these two centuries.

The disease was caused by a bacterium called Yersinia pestis. This is the same bacterium responsible for the Black Death. Scientists confirmed this by finding Yersinia pestis DNA in ancient human remains. The plague likely traveled through trade routes via grain ships. These ships moved food from Roman Egypt to other parts of the empire. Researchers believe infected rats and fleas on these ships spread the contagion. The disease arrived in Roman Egypt in 541. It spread around the Mediterranean Sea until 544. It persisted in Northern Europe and the Arabian Peninsula until 549.

Historians have debated where the plague first began. Genetic studies suggest the origin was in Central Asia. Specifically, the strain may have come from the Tian Shan mountain range. This range sits on the borders of Kyrgyzstan, Kazakhstan, and China. Some evidence suggests nomadic peoples helped spread the germ across the Eurasian steppe. However, other scholars suggest a different path. They argue the plague may have started in sub-Saharan Africa. In this theory, merchants from the Kingdom of Aksum carried it to the Mediterranean. This would explain why the Sasanid Empire saw the outbreak later.

Many people recorded the terrible effects of the epidemic. The Byzantine historian Procopius was one of the first to report it. He wrote about the outbreak in the port of Pelusium in Egypt. Procopius also recorded the situation in the capital, Constantinople. He claimed the plague killed 10,000 people every day at its peak. He noted that bodies were stacked in the open because there was no room for burials. The Emperor Justinian I also contracted the disease. According to Procopius, the Emperor recovered in 542. Other historians like John of Ephesus and Evagrius Scholasticus also provided first-hand accounts.

The plague caused massive social and economic changes. In the countryside, the farming community was wiped out. This led to a lack of crops and higher grain prices. Because so many people died, tax revenues for the empire declined. This was difficult because Justinian was spending heavily on wars and building projects. He had fought wars against the Vandals and the Ostrogoths. He also spent much money on great churches like the Hagia Sophia. To manage the chaos, Justinian enacted new laws regarding inheritance. These laws helped when victims died without leaving a will.

Political shifts occurred as the empire weakened. Justinian's armies had nearly retaken the western Mediterranean coast. The plague weakened the Byzantine Empire at this critical moment. This allowed groups like the Goths to become more active in their conflicts. Later, in 568, the Lombards invaded Northern Italy. They defeated a small Byzantine army and established a new kingdom. The plague also reached as far as Britain. Evidence of victims has been found at an Anglo-Saxon burial site near Cambridge. In the south, inscriptions in the Arabian Peninsula also suggest the plague traveled far.

Scholars still argue about the true impact of the plague. Some say it had profound economic and religious effects. Others, like Mordechai and Eisenberg, believe the impact was overstated. They argue that while the plague was sad, it did not cause a long-lasting population decline. They suggest the eyewitness accounts might be too dramatic to be perfectly accurate. However, other researchers criticize these views. They point to genetic evidence and the massive number of deaths in specific areas. Whether the impact was total or localized, the Plague of Justinian remains a major turning point in history.