How long did it take beethoven to write the fifth symphony?

It took Ludwig van Beethoven approximately four years to write his Fifth Symphony. He began sketching out the initial ideas for the symphony in 1804, but it was not completed until 1808. During the composition process, Beethoven made significant revisions and alterations to the symphony, including changing its original key and reworking the orchestration. The Fifth Symphony was finally premiered on December 22, 1808, at the Theater an der Wien in Vienna, Austria.