Is it true that there is a global pandemic every 100 years?

In the year 2020, a post claimed that every 100 years we have witnessed a global pandemic and this topic became pretty hyped. According to the post, it is said that "there is a theory that every 100 years a pandemic has happened." This seems normal at the first glance, but after a glance or two, the accuracy of this theory seems quite scary.

The post featured pandemics such as Plague of 1720, Cholera Outbreak of 1820, Spanish Flu of 1920, and 2020's Covid-19, also known as the Corona Virus.  Even though the plague wasn't a pandemic, the other two examples didn't even occur in the years stated by this post. Also in an interview with PolitiFact, Yale University history professor Frank Snowden said, “I am suspicious of the idea that pandemics run to a railroad timetable”.  

Cholera originated in 1817, Spanish Flu originated in 1918 and the Corona Virus was reported at the end of December 2019 in Wuhan, China. Also, this post ignores most of the other pandemics, which occurred over several centuries that did not occur in the same pattern, such as the Great Plague of London, which happened in 1665, the Yellow Fever in the late 1800s, the Asian Flu in 1957, and the Swine Flu in 2009. 

According to these facts, it is certain that the creator of this post just wanted to create some misunderstanding among the people or he just didn't read his history lessons well. But deep down, this was just a hoax. Let me know your views in the comments section.

~~By Abdul Wahid