The human race has accomplished a lot in the last 200 or so years.
For the most part of human history, science and innovation was at a standstill. Things really started moving from mid 1800s. Who knows where we would be if the internal combustion engine for example was invented in 1659 instead of 1859.
But even with all the inventions that have happened in our history, some are more important than others. The above video looks at arguably the most important inventions ever.