Gangs started in Europe long ago, probably Western Europe. United Kingdom is the highest possibility.
I know I'm like 10 years late but the first country to be discovered is believed to be san Marino, which is also one of the worlds smallest country.
Aluminum was first discovered in Denmark.
Yes, gangs can be all over the world, but there is no way to prove that there are gangs in every country of the world. There is a possibility that there might be gangs in every country, but there isn't a way to prove it completely.
England
england
Antarctica
Mangoes were first discovered in northeastern India, also in Bangladesh and Myanmar.
Oil was first discovered in the country of Iran in 1908. This discovery marked the beginning of the modern oil industry in the Middle East.
Mexic
Coffee was first discovered in Ethiopia.
They were first discovered in China
Great Britain