Genesis
8:20 And Noah builded an altar unto the LORD; and
took of every clean beast, and of every clean fowl, and offered burnt offerings
on the altar.
8:21 And the LORD smelled a sweet savour; and the LORD said in his heart, I will
not again curse the ground any more for man's sake; for the imagination of man's
heart [is] evil from his youth; neither will I again smite any more every thing
living, as I have done.
8:22 While the earth remaineth, seedtime and harvest, and cold and heat, and
summer and winter, and day and night shall not cease.
Noah built an alter and "offered burnt offerings" about 900 years before there was a Jew, so this could not be looked at as being a Jewish custom or law. Because he sacrificed more than one animal, some of these could have been "sin offerings" and some were surly "thank offerings" for the Lords protection during the flood.
For further study, read: After the Flood
(Interesting side note: In the Garden of Eden, God had cursed the ground because of the sin of Adam. In verse 21 above, God removes that curse.)