5th-millennium BC introductions

thumb|Open-heeled slippers Slippers are a type of shoes falling under the broader category of light footwear, that are easy to put on and off and are intended to be worn indoors, particularly at home. They provide comfort and protection for the feet when walking indoors.

practice of burning tobacco and inhaling the resulting smoke

thumb|A model in white panties

elephant that is trained and guided by humans for combat

process by which a duplicate sculpture (often metal) is cast from an original sculpture

archaeogenetic name for an ancestral genetic component