What year was the first human?

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.