Stonehenge has undergone multiple phases of reconstruction since the early 20th century. The most extensive restorations began in 1901 when archaeologist William Gowland oversaw the first modern reconstruction of the site. He reset several stones that had fallen and made adjustments to others. Then in 1919, Sir Cecil Chubb donated Stonehenge to the British government, sparking a new phase of preservation and restoration. Throughout the 1950s and 1960s, several stones were moved, re-erected, and