From William Bradford's Of Plymouth Plantation 1620-1647:
I may not here omit how, notwithstand all their great pains and industry, and the great hopes of a large crop, the Lord seemed to blast, and take away the same, and to threaten further and more sore famine unto them. By a great drought which continued from the third week in May, till about the middle of July, without any rain and with great heat for the most part, insomuch as the corn began to wither away though it was set with fish, the moisture whereof helped it much. Yet at length it began to languish sore, and some of the drier grounds were parched like withered hay, part whereof never recovered. Upon which they set apart a solemn day of humiliation, to seek the Lord by humble and fervent prayer, in this great distress. And He was pleased to give them a gracious and speedy answer, both to their own and the Indians' admiration that lived amongst them. For all the morning, and greatest part of the day, it was clear weather and very hot, and not a cloud or any sign of rain to be seen; yet toward evening it began to overcast, and shortly after to rain with such sweet and gentle showers as gave them cause of rejoicing and blessing God. It came without either wind or thunder or any violence, and by degrees in that abundance as that the earth was thoroughly wet and soaked and therewith. Which did so apparently revive and quicken the decayed corn and other fruits, as was wonderful to see, and made the Indians astonished to behold. And afterwards the Lord sent them such seasonable showers, with interchange of fair warm weather as, through His blessing, caused a fruitful and liberal harvest, to their no small comfort and rejoicing. For which mercy, in time convenient, they also set apart a day of thanksgiving.
The passage is footnoted, with the editor suggesting that this particular day of thanksgiving may have been in July (Bradford doesn't say when the convenient time was for setting apart a day).
Incidentally, today's Washington Post had a story about what some call the first Thanksgiving -- little wonder we don't memorialize it the way we do the Pilgrims.Posted by Ideofact at November 25, 2004 11:40 PM