Same questions for the following:
The adoration of the Wafer began 1220
The Ave Maria was introduced 1316
The cup was taken from the laity in 1415
Purgatory was officially decreed In 1439
Roman tradition was placed on the same level as Scripture 1546
The Apocrypha was received into the Canon 1546
The immaculate conception of the Virgin Mary was announced 1854
The doctrine of the temporal power of the Pope proclaimed 1864
The personal corporeal presence of the Virgin in heaven 1950
Where are you cutting and pasting from? What is your source?
That is quite a list, have you also posted from whence you cut and pasted it?
I have no time to delve into each one individually and I encourage you to seek out the Catholic understanding of each.
What I will say is that the theology of the Church is ever developing, not changing, but developing in understanding.
Many of those things you list as being innovated or introduced at specific dates were done so in response to specific heresies or a need to clarify in light of theological study.
The Church is like a darkened room of which the contents become clearer as the light comes up and illuminates them.
If you truly want answers to those questions there are many good references and works by Catholic theologians which could enlighten you as to each item’s origin and the theology and Scripture which supports it.