5-Weekend'd JULY ，once in 823yrs Myth？

So The Calendar Of July 2017 is special in its own Kind.

Did you get to figure out that This Month of July this year will have 5 Sartudays，5 Sundays and 5 Mondays. Coming with its own story of occurrence happenings！ Once every 823 yrs.

So is it really a myth that This happens only every 823 years ，Chinese calling it silver pocket full of Money？ Or is it that really its a special one？

Happy New month Y'all，it will be a month
full of weekends Though.