Advanced Tools vs. Ancient Tools
species was the most like modern day humans. They were often known as the "wise men" and had large brains. This species helped along many things that were created before them, and we've made them even better since then.
The Homo Habilis (2 million years ago) Also know as 'handy man' were the first to discover making tools, they created a uni-facial tool which is a tool with only one side. The first to walk upright like humans, but had a brian about the size of a modern day two-year old.
The Cro-Magnon (40,000 years ago) They moved out of Africa, invaded Europe, and took over. The first to use art in their everyday life. This picture shows them using what they have to work with to make art. They engraved the wall because that's all they had.
The Homo Erectus (1.5 million years ago) Without them, we may not have tools, such as hammers and other things we use to work with. We might not of had fire if it wasn't for them.

The Neandrothals (100,000 to 30,000 years ago) As you can see very much like us, the first neandrothals have helped us as a world, very much. They had the same ideas of taking care of the sick, and burrying the dead. They were language capable and pyshically looked almost like us. Personally, I think that if it wasn't for this group, we wouldn't be as advanced as we are today.
The Homo Habilis (2 million years ago) Also know as 'handy man' were the first to discover making tools, they created a uni-facial tool which is a tool with only one side. The first to walk upright like humans, but had a brian about the size of a modern day two-year old.
Neandrothal vs. Modern Human