What is Corpus Christi?

So, one of these days I was thinking: Christmas is the birth of Jesus, Easter is his death and resurrection, so, what is the meaning of Corpus Christi? As I always do when I have doubts on a random matters, I consulted Wikipedia. That's what I found:

Corpus Christi (Latin for Body of Christ) is a Western Catholic solemnity. It is also celebrated in some Anglican, Lutheran churches and some Liberal Catholic Churches. It does not commemorate a particular event in Jesus's life but celebrates the Body of Christ in the Mass. [...] In the current Ordinary form of the Roman rite of the Catholic Church, the feast is officially known as the Solemnity of the Most Holy Body and Blood of Christ.

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Ok, I guess this explains it. But if you want to read the whole text, you can check on http://en.wikipedia.org/wiki/Corpus_Christi_%28feast%29

Enjoy!