Catholic Answer
The Catholic faith emanated from God from the beginning of time, and was established on earth definitively from the side of Jesus Christ on the cross outside of Jerusalem when He side was pierced by a spear, around 33 A.D.. Then it was shown to the world at Pentecost with the coming of the Holy Spirit, fifty-three days later. In other words, God created the Catholic Church out of love for men, and He continues to sustain it in existence until the end of the world, again, out of Love.
from
The Catechism of the Catholic Church, second edition, English translation 1994
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The Church is born primarily of Christ's total self-giving for our salvation, anticipated in the institution of the Eucharist and fulfilled on the cross. "The origin and growth of the church are symbolized by the blood and water which flowed from the open side of Christ as he slept the sleep of death upon the cross that there came forth the 'wondrous sacrament of the whole Church.'" Sacrosanctum concilium 5) As Eve was formed from the sleeping Adam's side, so the church was born from the pierced heart of Christ hanging dead on the cross. (Cf. St. Ambrose, In Luc. 2, 85-89: J.P. Migne, ed., Patrologia Latina {Paris: 1841-1855} 15, 1666-1668)
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"When the work which the Father gave the Son to do on earth was accomplished, the Holy Spirit was sent on the day of Pentecost in order that he might continually sanctify the Church." (Lumen gentium 4; cf. Jn 17:4) The "the Church was openly displayed to the crowds and the spread of the gospel among the nations, through preaching, was begun." (Ad gentes 4) As the "convocation" of all men for salvation, the Church in her very nature is missionary, sent by Christ to all the nations to make disciples of them. (Cf. Mt 28:19-20; Ad gentes 2; 5-6)
Ecumenical Catholic Church was created in 1987.
Catholic Mariavite Church was created in 1935.
Catholic Life Church was created in 1971.
Armenian Catholic Church was created in 1742.
Free Catholic Church was created in 1949.
Liberal Catholic Church was created in 1913.
Polish Catholic Church was created in 1924.
Evangelical Catholic Church was created in 1976.
Universal Catholic Church was created in 2007.
Celtic Catholic Church was created in 1974.
Steilacoom Catholic Church was created in 1855.
Palmarian Catholic Church was created in 1975.