Verdi managed to overcome his unhappiness in 1842 when he produced his opera "Nabucco". This was a great success and made him world-famous. He started to work very hard, composing two operas a year. He not only had to write the music but organize all the people to perform it. It was a huge workload. His opera "Ernani" (1844) was one of the best from this period. In 1847 he had another big success with "Macbeth". This opera, based on Shakespeare’s famous play, is still one of the best-loved of all operas. He was becoming a success.