During the Dutch Golden Age in the late 16th century onward, the Dutch Republic dominated world trade in the 17th century, conquering a vast colonial empire and operating the largest fleet of merchantmen of any nation.
The County of Holland was the wealthiest and most urbanized region in the world., then came
Rampjaar and the country was was attacked by England, France, and Germany (prince-bishops Bernhard von Galen, bishop of Münster and Maximilian Henry of Bavaria, the archbishop of Cologne).
https://en.wikipedia.org/wiki/Dutch_Republic7 times 7 times 7 SHEMITAH cycle, fast forward 7*7*7 = 343 years
https://www.youtube.com/watch?v=rkELgi6EkNo&feature=youtu.beSo a difference in dates is the cube of the number seven in one calendar system.....
Clearly we should devise a new calendar system that allows every day to be the cube of one or another number. This would be the best thing since sliced bread.