Köchel catalogue son's earlier works; Mozart's catalogue of his own compositions (begun in February 1784 with K. 449) allows relatively precise dating of many of his later works. The catalogue included the opening bars of each piece, known as an incipit. Köchel divided the corpus into a main chronology of 626 works, and five appendices ("" in German, abbreviated to "Anh.") The appendices (Anh. I-V) included: Since Köchel published his original catalogue in 1863 (now referred to as K), the dating of Mozart's compositions has been subject to constant revision. Many more pieces have since been found, re-dated, re-attributed and re-numbered, requiring
19th-century London and other kiln-fired tiles became popular facings for buildings in the 1880's and 1890's, because they resisted soot and damp and also provided much-welcome color to buildings that were otherwise drab. Many famous buildings and landmarks of London were constructed during the 19th century including: 19th-century London This article covers the 19th century history of London, during which it grew enormously to become a global city of immense importance, and the capital of the British Empire, fed by immigrants from the colonies and refugees from conflicts and famines. It was the largest city in the world from about 1825, the