Geological Timeline Individual Reflection

          There have been many major events in Earth's history, but there a certain three that have stood out to me. I think that one of the most major events was the creation of Earth. This is arguably one of the most important events out of Earth's history because if Earth hadn't been formed by the collisions that occurred 4.6 billion years ago, there would be nothing. There would be no animals, no plants, no humans, but most importantly, there would be no life. Another major event in Earth's history was the Cambrian Explosion that happened in the Cambrian Era. During this time, there was a lot of diversification in a short amount of time. This event is significant because it introduced lots of new species and created a huge amount of diversity. The last major event was the mass extinction of dinosaurs in the Mesozoic Era because it gave way to mammals and humans. Without this event, dinosaurs would still dominate the Earth and smaller mammals would not have been able to compete against them. Us humans also wouldn't have stood a chance against the dinosaurs let alone dominate the food chain and make as many advancements as we have.

          The scale of Earth's history is massive and it took an extremely long time to become what it is now. What surprised me the most was how so much of Earth's history was so bare and empty. Earth had no life until just recently when life and diversity started growing at fast rates.

          Although humans have only been around for a short amount of time, we have made a huge impact on this Earth. We have made so many advancements in technology, math, science, and so much more. Humans have changed the planet so much, when actually, if you think about it, we are merely a speck on the timeline of Earth. 

          One question that I still have is are other planets capable of undergoing changes like Earth did to create a habitable environment capable of sustaining life. Also, if humans can contribute this much in such a short amount of time, how many more advancements/improvements can they make in the many more years to come.