All dates are based on the Gregorian calendar.
1933-1945: Jews, Poles, Gypsies, Russians, Ukrainians, Slavs, homosexuals and the mentally handicapped are killed brutally by, firing squad, gas chambers, brutal work and Nazi Soldiers.
2121: 100 cities are home to 80% of humanity, they are sustainable as environmentalism is one of their core features. The eco-friendly village of London is a 20km² area where unoccupied offices are homes and sets up eco-businesses to trade products and services. All the children get free education from their experienced elders in various green arts and crafts.
1348-1350: one of the most devastating pandemics in human history, resulting in the deaths of an estimated 75 to 200 million people in Eurasia and Europe.
2075: hunger is all but eliminated by Uber, the world’s premier logistics, transportation, and energy company, has entirely eliminated urban “food islands” in developed areas of the world.
Now: about 92% of the potentially habitable planets in the universe are yet to be born.
2500: there are 500-year-old humans living on Earth.
1860 BC-now: principles of property law are applied to humans allowing them to be classified as property, to be owned, bought and sold accordingly.
3000: aliens exist, we accept it. We learn from them, they learn from us. They find some of our culture amusing, there will be things they didn’t have that we invented originally that they are fascinated by and vice versa.
Now: sixth mass extinction of plants and animals, the sixth wave of extinctions in the past half-billion years. We’re currently experiencing the worst spate of species die-offs since the loss of the dinosaurs 65 million years ago. Although extinction is a natural phenomenon, it occurs at a natural “background” rate of about one to five species per year. Scientists estimate we’re now losing species at 1,000 to 10,000 times the background rate, with literally dozens going extinct every day. It could be a scary future indeed, with as many as 30 to 50 percent of all species possibly heading toward extinction by mid-century
2200: people don’t work to live, we just live since we are born, and are driven by whatever motivates them.
1939-1945: the most destructive and tragic war of all time where human rights did not exist. Also the rise of the atomic bomb and the nuclear arms race.
2080: we efficiently harness nuclear fusion and use it everywhere.
1994: 500,000-1,000,000 people were murdered in a span of 100 days. Not by an army, not by nuclear bombs. By their neighbours with machetes. It was so disorganised that they had no way of telling how many people actually died.
2750: we still need to keep time, things may move faster but the concept must still exist. Of course it becomes relative to the place you living.
2006: New Horizons is launched from Cape Canaveral, directly into an Earth-and-solar-escape trajectory with an Earth-relative speed of about 58,536 km/h; it set the record for the highest launch speed of a human-made object from Earth. With this speed, it would take about 165,000 years to reach Alpha Centauri, the nearest star.
2800: freewill is an illusion. It is not only limited by physical boundaries like space, time, and our own biology, it’s also limited by our cognitive abilities and influenced greatly by external influences such as our upbringing and culture. Thus, freewill is simply the term we use to describe the operations of our brain in decision making. Therefore, it is possible to manipulate the freewill of humans, perhaps limiting their ability to commit violence toward each other. Many of our biological traits were hardwired into our brains through millions of years of human evolution – thus, we can hard wire a universal morality into themselves, effectively ending human violence through a universal cognitive code of ethics. This step effectively leads to unprecedented peace throughout the world.
1880-2012: global average land and ocean surface temperature shows a warming of 0.85 °C in the period of 1880 to 2012, based on multiple independently produced data sets. Earth’s average surface temperature rose by 0.74±0.18 °C over the period 1906–2005. The rate of warming almost doubled for the last half of that period (0.13±0.03 °C per decade, versus 0.07±0.02 °C per decade).
3200: faster than light travel does not occur, but humans achieved interstellar travel due to their longevity. Not only physical life spans is longer but our virtual lifespan is near infinite. Allowing us to travel for many hundreds of years to nearby star systems. Quantum Entanglement will allow us to communicate instantly even across many light years.
1950: The Catholic Church hold meetings concerning sexual abuse of minors by priests, and yet, apparently nothing was done to prevent the growing disaster.
2400: human relationships, ethnicity, and sexuality are more fluid. Gender, and gender norms and racial biases seem even more archaic. It became taboo to inquire as to someones birth gender, and since so many experiences will exist virtually the biological traits of each individual are rendered all but irrelevant.
1958-1962: China experiences a monumental famine that kills at least 45 million people.
This is a very pessimistic/optimistic view of things, of course, but if you think about it, since we are here in this planet, mainly after the Industrial Revolution, life is tough. In a few hundred years life will become easier and easier with the advance of the technology. We basically have been living in the worst possible era.