The Catholic (i.e. Universal) Church has Taught, and never wavered from [its] teaching on the Real Presence of Christ in the Eucharist for over two thousand years. That's four hundred years before the canon of scripture, fifteen hundred years before Luther. Two thousand years before us.Last things first:
Mary and I have never met, I live in [America], and she lives in Kenya. Don't you think it's odd that we could be saying the EXACT same thing.
Jesus Christ the God-man who walked the streets of Nazareth is on earth!
And except that the Lord had shortened those days, no flesh should be saved: but for the elect's sake, whom he hath chosen, he hath shortened the days. And then if any man shall say to you, Lo, here is Christ; or, lo, he is there; believe him not: for false Christs and false prophets shall rise, and shall shew signs and wonders, to seduce, if it were possible, even the elect.
You may reply, "But that passage is talking about people pretending to be Jesus, people like Vissarion, José Luis de Jesús Miranda, or Sun Myung Moon - human beings pretending to be Christ." Yet notice that (a) this passage speaks primarily about people announcing Christ, not about people calling themselves Christ; and (b) are there not many alleged eucharistic miracles that are brought forward in an attempt to show that Christ is present (Santarem, Sienna, Erding, and Cascia, for example). What signs and wonders are foolish blasphemers like Vissarion doing that compare with the bold claims of miracles amongst those of the Roman communion? The elect will reject all these false Christs.
Going back to the beginning of the comment, his mathematics skills reflect poorly on America. The last supper was less than 2000 years ago. Moreover, the doctrine of the real presence (in the transubstantial sense it is given by Rome today) was not the ancient teaching of the churches - even if a real spiritual presence was taught by some of the fathers.
Rome didn't formally define the canon of Scripture until after Luther died and the Reformation was already well under way. On the other hand, the apostles clearly recognized the Old Testament books as canon, and recognized the New Testament books as canon, as they were being written. For example, Paul refers to Luke's gospel (or perhaps Matthew's gospel) as Scripture:
1 Timothy 5:18 For the scripture saith, Thou shalt not muzzle the ox that treadeth out the corn. And, The labourer is worthy of his reward.
Luke 10:7 And in the same house remain, eating and drinking such things as they give: for the labourer is worthy of his hire. Go not from house to house.
Matthew 10:10 Nor scrip for your journey, neither two coats, neither shoes, nor yet staves: for the workman is worthy of his meat.
Moreover, Peter refers to Paul's epistles as Scripture:
2 Peter 3:15-16
And account that the longsuffering of our Lord is salvation; even as our beloved brother Paul also according to the wisdom given unto him hath written unto you; as also in all his epistles, speaking in them of these things; in which are some things hard to be understood, which they that are unlearned and unstable wrest, as they do also the other scriptures, unto their own destruction.
Likewise, Luther wasn't the first to oppose Rome's dogma of transubstantiation. Wycliffe opposed the dogma of transubstantiation in the 1300's - and considering that the term "transubstantiation" was first used by an "ecumenical" council in the 1200's, the idea that this dogma was some long-standing or apostolic tradition that Luther was the first to question (something only implied, not stated, by our Roman friend here) - is not credible.
I'm sure that the two folks in the Roman communion have the same views. My Reformed brethren around the globe have the same views I do, if geographical dispersion is important. But ultimately, the question is not geographical distribution but Scriptural authenticity. And to be blunt: one cannot legitimately derive transubstantiation from Scripture.