But there are other calendars that follow Lunar calendars to a T, such as the Islamic calendar, which is made up of 13 months. Each month in this calendar lasts for a single lunar cycle.

Its ecological calendar consists of 13 months, noting the cycles of the moon and the natural phenomena the Mi’kmaw observed and used to survive here for thousands of years.

The Ge'ez calendar has 13 months. It includes 12 months of 30 days each and an extra month called Pagumē with 5 or 6 days, depending on the year. Article continues below ADVERTISEMENT.

This beautiful East African country follows its own unique calendar, which has 13 months in a year. While most of the world uses the Gregorian calendar, ...

While you're most familiar with the 12-month Gregorian calendar, it's not the only one out there. Long before European contact, the Mi’kmaq calendar has existed. Its ecological calendar consists of 13 ...