<prompt> unaweza kugeuza matini haya ya swahilikwa kiingereza?hasa miaka 20 iliyopita leo, juu ya 1 januari 1999, nchi za 11 eu zilizindua sarafu ya kawaida, euro, na ilianzisha sera ya pamoja ya fedha chini ya benki kuu ya ulaya.  <response>: 20 years ago, on 1 january 1999, 11 eu countries launched a common currency and introduced a shared monetary policy, which responsibilities were given to the european central bank and the eurosystem. 