english: Archeological evidence shows that it's been that way for as long as 500,000 years, with about 10% of human remains showing the associated differences in arm length and bone density, and some ancient tools and artifacts showing evidence of left-hand use.
non_english: Arheološki nalazi pokazuju da se ovo dešava već 500 000 godina, da oko 10% čovečanstva i dalje pokazuje povezane razlike u dužini ruke i gustini kostiju, a neki prastari alati i artefakti dokazuju levoruko korišćenje.