![]() ![]() This means that for every person alive today, there are approximately 14 people who are no longer with us. If we add the number of people alive today, we get 117 billion humans that have ever lived. With this context and timeframe in mind, the demographers estimate that 109 billion people have lived and died over the course of 192,000 years. Before the modern era, lifespans were much shorter, so long stretches of time can actually influence numbers drastically.Around the chosen start date, the global cohort of humans was quite small-perhaps as low as only 30,000 individuals.There are two opposing points to consider when thinking about prehistoric humans: For the purposes of this exercise, however, the two demographers used 190,000 BCE as the cutoff. Evolution is a gradual process, so figuring out the start date for humankind is no easy task. ![]() Quantifying all of humanity requires a firm starting date for when humans became, well, human. How many humans came before us? This is the question demographers like Toshiko Kaneda and Carl Haub have attempted to answer. The unique and powerful visualization above, from the team at Our World in Data, highlights how many humans have ever lived, and how much of humanity is currently alive today.
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