Maybe those things did not see so great at the time, but today as we look back, it is obvious that they were great things. But, thankfulness is not restricted to just thankfulness for spiritual blessings, although they should be plenty of cause for us to be thankful. We are to be thankful for God's material blessings upon us. It is His divine providence which guides us and supplies our daily needs. He gives us strength and health to gain wealth.
All good things come from above.
The original Thanksgiving was thankfulness over the blessings of God. We must never forget that the prosperity which this nation has enjoyed is the direct result of the blessings of God. Because people now have the idea that the prosperity is the result of their own effort, we are going downhill fast. Are we thankful to Him. The answer is found again in the fact that love is not identified as solely an emotion, but love is action.