We speak of Acheulean peoples and culture in reference to other dimensions of lifeways at that time. Much more complicated a production process than that required for Oldowan. Hand axes vary in size and shape greatly but this variation does not conform to geographical differences and appears not to indicate cultural differences. Function is unknown and highly debated. Probably multi-purpose tool.
Some sites have thousands of hand axes and some have very few.
Acheulean tools more common than Oldowan tools. Wooden objects found in England and in Zambia. Hypothesis that in Asia bamboo was used to a great extent. Certainly, by about 500,000 fire in use at Acheulean sites in more temperate zones in Asia and Europe. Fire was necessary for warmth and protection from predators.