Modern humans evolved in Africa roughly 250,000 to 400,000 years ago. Before them were less sophisticated humans whose ancestors were primates. All of that evolution occurred 2 million+ years ago. Here's a link.
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Another Answer:
Here a chart on humans:
Homo Habilis lived 2.3 to 1.4 million years ago
Homo antecessor lived 1.2 million to 800,000 years ago
Homo Erectus lived 1.8 million to 50,000 years ago
Homo neanderthalensis lived 90,000 to 28,000 years ago
Homo heidelbergensis lived 500,000 years ago
Homo rhodesiensis lived 300,000 years ago
Cro-Magnon lived 55,000 to 10,000 years ago (Cro-Magnon's were Homo-Sapiens, but were still evolving to become US)
Homo sapien idaltu lived 161,000 years ago (oldest representive of the Homo Sapiens species)
Homo rudolfensis lived 2.4 and 1.6 million years ago
Homo ergaster lived
Homo Sapiens Sapiens lived 55,000 ago to now
Homo cepranesis lived 450,000 years ago
Ok, so based on my observations, 2.4 million years ago, Homo Rudolfensis was running around. And he was before Homo hablis, so that makes him, i guess, the first human.
The earliest known human fossils date back to around 300,000 years ago. These early humans are part of the species Homo sapiens, which is believed to have evolved in Africa.
The first human is believed to have been named Adam according to the Bible.
The first human beings are believed to have originated in Africa, specifically in the region of East Africa. This area is often referred to as the "Cradle of Humankind" as it is where some of the earliest evidence of human ancestors and early human species have been found.
The exact location of where the first human appeared is uncertain, but it is believed that early human ancestors originated in Africa around 200,000 years ago. This is based on fossil evidence and genetic studies that trace human migration patterns.
Human life first appeared in Africa and then proceeded to migrate to other continents.
The first human achievement was likely the control and use of fire, which provided warmth, protection, and enabled cooking. This allowed early humans to expand their range, improve their diet, and develop more sophisticated tools and technologies.
A human was first put into space in April, 1961.
The first human was Adam. In the year of 1511 B.C, Adam and Eve who was the first female human played together. Adam was fine that time but he lived about 1000 years . So he died in the year of 511 B.C.
In 1969
1961 Yuri Gagarin
Comanaut Yuri Gagarin was the first human in space. He travelled aboard Vostok 1 on April 12th 1961.
her name was Harriet Quimby and it was in the year 1912
It was in the year 1968 , by Apollo 8 astronauts.
The first magnetic resonance image was published in 1973 and the first study performed on a human took place on July 3, 1977
2 pounds
If you are referring to years, 3 is wrong... the first year of a dogs life is equivalent to 13 human years and then all the ones after that are equivalent to 7 human years. In the first year of a dogs life, every 28 days equals 1 year in dog time. Then, every year after that, every 52 days it gains another year in equivalence to 7 dog years in one human year.
The formula is: 10.5 dog years per human year for the first 2 years, then 4 dog years per human year for each year after.
Your dog is approximately 81 "human years" old. For the first two years, a dog year is equal to 10.5 human years. After that, a dog year equals about 4 human years. This calculation is based on studies that dogs, except maybe larger breeds, develop more quickly in the first two years of life.