r 1 The 19th changes. was characterised by major social 2 The 80s are considered by many as the greatest .... in music history. 3 It is expected that sales will increase during the second .......... of December. 4 2016 had 366 days so it was a(n) 5 On 31st December 1999, people across the world celebrated the beginning of the 3rd ......​