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Case file

Baptism

Wikipedia's first sentence called it “water purification ritual practiced in certain religions such as christianity”. Today it says “christian rite of initiation almost invariably with the use of water”.
Measured, not asserted. Every count, date and revision on this page was taken from Wikipedia's own history and checked against the live article. The words quoted are theirs.
Machine-checked against the full current article on 2026-08-03.
We saved snapshots of this article over twenty years; you are reading the 2005 one. Red dashes: removed from Wikipedia since. Pale dots: rewritten; the numbered note shows what it says now. 1 tap a number or a side note to jump between them
The opening as it read in 2005

Baptism is a water purification ritual practiced in certain religions such as Christianity , Mandaeanism , Sikhism , and some historic sects of Judaism . The word baptize derives from the Greek word βάπτειν (the infinitive; also listed as the 1st person singular present active indicative βαπτίζω), which loosely means "to dip, bathe, or wash". To some groups it is a matter of religious conviction to assert that baptism is precisely equivalent to, to plunge something entirely into the water, so that the water closes over it. Today, baptism is most readily identified with Christianity , where it symbolizes the cleansing (remission) of sins, and the union of the believer with Christ in His death, burial and resurrection so that he becomes one of Christ's Faithful . The Christian ritual of baptism traces back to John the Baptist , who the Bible says baptized Jesus in the Jordan River . Baptism among Christians is performed by sprinkling, pouring or full immersion. The choice to be baptized is made by a confessing believer ( believer baptism , or credobaptism ), regardless of age, as a confession of his faith; or on behalf of the child by his or her parents ( paedobaptism ) if the parents have themselves been baptized, and profess faith. Some churches practice credobaptism and some practice paedobaptism and some churches practice both. Some practice immersion, some practice pouring, and some practice sprinkling. There are differences in views about the nature and practice of Christian baptism. Martin Luther , for example, placed great importance on baptism. Luther states in The Large Catechism of 1529AD, "To put it most simply, the power, effect, benefit, fruit, and purpose of Baptism is to save. No one is baptized in order to become a prince, but as the words say, to 'be saved.' To be saved, we know, is nothing else than to be delivered from sin, death, and the devil and to enter into the kingdom of Christ and live with him forever." In contrast, Baptist groups deny that baptism has any such power, but rather only testifies outwardly to the operation of God's power , which is invisible, internal, and completely separate from the rite itself. It is administered from above to point to that gift of the life-giving Spirit, and to portray baptism as an act not of man but of God. In contrast, a person baptized by immersion is enclosed under the water and brought out, to signify cleansing through death and burial with Christ, and consequent raising again in newness of life by the Holy Spirit. Baptism is a public rite, in testimony to others of the grace of God bestowed upon the person, and as a seal of God's promises in Christ to those who believe.1

This is Wikipedia's own text, saved in our repository. Their copy of it is revision 17860050.
Today
Wikipedia's first sentence called it “water purification ritual practiced in certain religions such as christianity”. Today it says “christian rite of initiation almost invariably with the use of water”. Read the current article and compare.
2005201020152020Oct '232025
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Counts in the opening at each snapshot. Green: the word gained ground. Red: it was cut. Grey: no change.

What Wikipedia says this is

Every article opens by defining its subject. This one was redefined since 2005, and today's defining sentence is their current revision.

Then

water purification ritual practiced in certain religions such as christianity

Now

christian rite of initiation almost invariably with the use of water

Struck red text is no longer in the article; dotted amber text was rewritten. Every revision id links to Wikipedia's copy; the text shown is our own saved copy. Data: /data. Wikipedia text is CC BY-SA; quoted for the record; not affiliated with Wikipedia.

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