The 2019 Global Week for Future was a series of 4,500 strikes across over 150 countries, focused around Friday 20 September and Friday 27 September. Likely the largest climate strikes in world history, the 20 September strikes gathered roughly 4 million protesters, many of them schoolchildren, including 1.4 million in Germany. On 27 September, an estimated two million people participated in demonstrations worldwide, including over one million protesters in Italy and several hundred thousand protesters in Canada.