Hyderabad, Jan. 26 -- In every major industry, there comes a defining moment not when profits begin, but when scale replaces effort. That moment is often marked by the arrival of the first billionaire. These individuals didn't just work harder; they owned the asset that multiplied faster than human labour.

From oil and software to social media, music, YouTube and Bitcoin, the first billionaires of each era reveal a powerful pattern: wealth at scale rarely comes from salaries, it comes from ownership, distribution, and leverage.

Here's a look at the trailblazers who became the first billionaires of their industries, and what their journeys quietly teach us. (Below list is as per popular Instagram page Wealth).

The First Billionaires of ...