Denver becomes 1st US city to legalise social marijuana use.
Sumway Taihulight of China, wins fastest Supercomputer title.
India ranks 20th on climate change performance index.
Russia quits from the International Criminal Court.
Harish Bhat appointed chairman of Tata Global Beverages.
Viswanathan Anand wins Chess Champions Showdown 2016 in St. Louis, USA .