Hasn’t the week always rotated through the calendar on a separate time system from days, months and years?

Answer: All have been taken in, and unaware that it is the Roman Julian/Gregorian calendar’s system that has promoted this “unbroken chain of successive weeks since Creation.” As the Scriptural luni-solar calendar was outlawed, it was this apparent connection to the first week of Creation that made this new calendar system palatable among the Christians, after all this new week still contained the necessary seven days.

This belief places the seventh-day Sabbath on a separate time system from that of the rest of Scriptures ordained “units of time.” For example, Scripture reveals in Genesis 1:14 that the Creator’s time keeping system was to reckon four units of timesigns, seasons, days and years. Yet it has not been largely discerned that since the Council of Nicea in A.D.325, the “signs” unit of time, has disappeared from our recognition as a time unit beaconed by both the sun and moon.  Now it is taught from the seminaries and pulpits alike, that the ancient Hebrew luni-solar calendar has always reckoned only three units of time— seasons (months), days and years. What happened to its reckoning of “signs” (Sabbaths complete also known as weeks)? “Verily my sabbaths ye shall keep: for it is a sign” between me and you throughout your generations”. . . Exodus 31:13. It is now taught that the “signs” are only reckoned using the Roman Gregorian calendar’s “unbroken chains of weeks”, and not Scriptures luni-solar calendar as ordained by the Creator.  This is a blatant accusation that our Creator is a liar, in that He said in Genesis 1:14 that “signs” are one of four elements of time beaconed by the sun and moon. Who is behind this calendar swap?

This change from the luni-solar to a fixed solar calendar occurred in Rome during the repressive measures which were enacted against ALL Jewish customs . . . during the reign of Emperor Hadrian. With the fall of the Nazarene Jerusalem, this new Roman calendar quickly spread throughout 'Christendom.'  This new calendar not only replaced yearly festival dates such as Passover, but it also revamped the concept of the week and its seventh day. Iranaeus 2nd Century A.D.

In the years following Clement of Alexandria's time, an ominous change started to take place that was to radically change the Christian concept of the Sabbath.” Records the Encyclopedia Biblica:  “This intimate connection between the week and the month was soon dissolved. It is certain that the week soon followed a development of its own, and it became the custom -- without paying any regard to the days of the month (i.e. the luni-solar month) . . . so that the New Moon no longer coincided with the first day of the month.   Then, on page 4179 of the same encyclopedia, we read: "The introduction...of the custom of celebrating the Sabbath every 7th day, irrespective of the relationship of the day to the moon’s phases, led to a complete separation from the ancient view of the Sabbath. . .  The MacMillan Company, 1899. P. 5290).

The modern seven-day week came into use during the early imperial period, after the Julian calendar came into effect, apparently stimulated by immigration from the Roman East. For a while it coexisted alongside the old 8-day nundinal cycle, and fasti are known which show both cycles. It was finally given official status by Constantine in 321.   Roman Calendar Encyclopedia, Days of the Week

Under the reign of Constantius the persecutions of the Jews reached such a height that. . . the computation of the calendar [was] forbidden under pain of severe punishment.  The Jewish Encyclopedia, “Calendar.”

Sabbath and New Moon (Rosh Hodesh), both periodically recur in the course of the year.  The New Moon is still, and the Sabbath originally was, dependent upon the lunar cycle. Universal Jewish Encyclopedia, page 410

He shall insult the Most High, he shall torment/wear out the holy ones of the Most High, and he shall attempt to change the calendar and the ordinance.  Daniel 7:25 (Knox’ Translation, Twentieth Century.)

. . . and all the world wondered after the beast. Rev 13:3

So now let me ask you – is there evidence that the unbroken chains of weeks was fabricated by man and not ordained by the Creator?   Yes.