The 2020 Summer Olympics were scheduled to start next July in Tokyo. But due to the coronavirus pandemic and the significative public health risks to the athletes and to Japanese and foreign spectators alike , the Japanese government announced the games had been postponed for one year. The games were rescheduled for 2021.
Hand dexterity that allowed humans to create changes to their environment. This included cooking food and creating complex tools. Cooked food provided much more and better protein at less work. This meant that humans could spend their time on things other than chewing food.
