claim: Ludwig van Beethoven's Cello Sonata No. 3 in A major, Op. 69 was written in 1808, in the same year Beethoven also completed and published his Fifth and Sixth Symphonies, composed and completed in 1808, which was first performed in the Theater an der Wien on 22 December 1808, in a four-hour concert.
supporting_facts.key: Cello Sonata No. 3 (Beethoven)
supporting_facts.key: Symphony No. 6 (Beethoven)