This Day in History: 0000-04-02

2 Apr – Composer Ludwig van Beethoven led the premiere of his Symphony 1 in C major in Vienna (1800).
2 Apr – After the formation of the League of Armed Neutrality (Denmark-Norway, Sweden, Prussia, and Russia) to guarantee free trade with Napoleonic France, a British fleet decimated a Danish-Norwegian force in the Battle of Copenhagen (1801).
2 Apr – Francis Crick and James Watson published an article in Nature correctly describing the double helix nature of DNA (1953).