Ah Thanksgiving! The food, the family, the fun. Tomorrow is the big day, and I got to wondering about the history of Thanksgiving. Among a ton of other information about it's history, here is one thing I found interesting...
The following (using the original wording) is considered to be the first official proclamation of our current holiday. Here's the URI of the official US State Department website I found if you want to read it for yourself.
June 20, 1676
"The Holy God having by a long and Continual Series of his Afflictive dispensations in and by the present Warr with the Heathen Natives of this land, written and brought to pass bitter things against his own Covenant people in this wilderness, yet so that we evidently discern that in the midst of his judgements he hath remembered mercy, having remembered his Footstool in the day of his sore displeasure against us for our sins, with many singular Intimations of his Fatherly Compassion, and regard; reserving many of our Towns from Desolation Threatened, and attempted by the Enemy, and giving us especially of late with many of our Confederates many signal Advantages against them, without such Disadvantage to ourselves as formerly we have been sensible of, if it be the Lord's mercy that we are not consumed, It certainly bespeaks our positive Thankfulness, when our Enemies are in any measure disappointed or destroyed; and fearing the Lord should take notice under so many Intimations of his returning mercy, we should be found an Insensible people, as not standing before Him with Thanksgiving, as well as lading him with our Complaints in the time of pressing Afflictions:
The Council has thought meet to appoint and set apart the 29th day of this instant June, as a day of Solemn Thanksgiving and praise to God for such his Goodness and Favour, many Particulars of which mercy might be Instanced, but we doubt not those who are sensible of God's Afflictions, have been as diligent to espy him returning to us; and that the Lord may behold us as a People offering Praise and thereby glorifying Him; the Council doth commend it to the Respective Ministers, Elders and people of this Jurisdiction; Solemnly and seriously to keep the same Beseeching that being perswaded by the mercies of God we may all, even this whole people offer up our bodies and soulds as a living and acceptable Service unto God by Jesus Christ."
This also shows to me that even if religion isn't your thing, historically there's no denying that the our forefathers thought it to be pretty important.