WLLR's Nearly Impossible Question

Rudolf is the most famous reindeer, but we found out the names of the other eight much earlier.  The names where published in a poem written by an American poet and professor of theology in WHAT year?

Ans:  1823 (Clement Clark Moore wrote "A Visit From Saint Nicholas" in 1822 and published it the following year.  We know it now as "'Twas the Night Before Christmas".)