Why has globalization occurred

Globalization happens when ideas, cultural characteristics and commerce are interchanged between different countries and parts of the world. When different methods of transportation begun to arise like ships, trains and cars, products and trading could occur on a wider scale. Some countries are dependent upon each other. They can import and export in order to boost their economy. Different cultural aspects can be synthesised into a new culture if there are immigrants or social media (with the new technological age) that bring the cultural differentiation with it.