The CC has changed many things that are not based on Scripture, some of which many Christians still traditionally follow, like:
The Calendar (time change)
"The original goal of the Gregorian calendar was to change the date of Easter. In 1582, when Pope Gregory XIII introduced his Gregorian calendar, Europe adhered to the Julian calendar, first implemented by Julius Caesar in 46 B.C."
The Day (time change)
...Adopted the Roman tradition of starting the new day at midnight (12am), instead of "at evening" like scripture prescribes.
The Sabbath (law change)
''Of course the Catholic Church claims that the change was her act. And the act is a mark of her ecclesiastical power and authority in religious matters.'' C. F. Thomas, Chancellor of Cardinal Gibbons, in answer to a letter regarding the change of the Sabbath, November 11, 1895.
The 2nd Commandment (law change)
...The 2nd commandment was removed and the 10th was split into two separate commandments so that the count remained the same.
The Yearly Holidays/Holy-Days/High Sabbath "Rest" days (Time & Law change)
...God's feast days were removed (considered exclusively "Jewish" holidays) and replaced with adapted pagan holidays like Christmas (Child-mass sacrifice) and Easter (Ashtaroth/Astarte/Ishtar/Queen of heaven/Fertility Goddess)
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"The Pope is of so great authority and power that he can modify, explain, or interpret even divine law. The pope can modify divine law, since his power is not of man, but of God, and he acts a vicegerent of God upon earth" Lucius Ferraris, Prompta Bibliotheca, art. Papa, II, Vol. VI, p. 29.
'Tradition, not Scripture, is the rock on which the church of Jesus Christ is built." Adrien Nampon, Catholic Doctrine as Defined by the Council of Trent, p. 157
...It was written that the saints would have to bear with these things for a season, since scripture can't be broken.
And he shall speak great words against the most High, and shall wear out the saints of the most High, and think to change times and laws: and they shall be given into his hand until a time and times and the dividing of time.(Daniel 7:25)