Anthropologists have pieced togethe

Anthropologists have pieced together the little they know about the history of left - handedness and right - handedness from indirect evidence. Though early men and women did not leave written records, they did leave tools, bones, and pictures. Stone Age hand axes and hatchets were made from stones that were carefully chipped away to form sharp cutting edges. In some. the pattern of chipping shows that these tools and weapons were made by right handed people. designed to fit comfortably into a right hand. Other Stone Age implements were made by or for left-handers Prehistoric pictures. painted on the walls of caves. provide further clues to the handedness of ancient people. A right - hander finds it easier to draw faces of people and animals facing toward the left. whereas a left - hander finds it easier to draw faces facing toward the right. Both kinds of faces have been found in ancient painting. On the whole. the evidence seems to indicate that prehistoric people were either ambidextrous or about equally likely to be left - or right - handed.

But, in the Bronze Age. the picture changed. The tools and weapons found from that period are mostly made for right - handed use. The predominance of right - handedness among humans today had apparently already been established.

ผลลัพธ์ (ซุนดา) 1:

Antropolog geus pieced babarengan saeutik maranéhanana nyaho ngeunaan sajarah kénca - handedness jeung katuhu -. Handedness ti bukti langsung Padahal lalaki awal jeung awewe teu ninggalkeun catetan ditulis, maranehna ninggalkeun pakakas, tulang, jeung gambar Batu Jaman sumbu leungeun jeung hatchets. Tembok diwangun tina batu nya éta sacara saksama chipped jauh ka ngabentuk edges motong seukeut. Dina sababaraha. pola chipping nempokeun nu pakakas ieu jeung pakarang anu dijieun ku katuhu urang dibikeun. dirancang pikeun nyocogkeun comfortably kana leungeun katuhu. Séjénna implements Batu Jaman Tembok diwangun ku atawa kenca-handers gambar jaman prasejarah dicét dina tembok guha nyadiakeun clues salajengna ka handedness jalma kuno A katuhu -.... hander manggih leuwih gampang ngagambar rupa urang jeung sato nyanghareup ka arah kenca sedengkeun kénca a - hander . manggih leuwih gampang ngagambar rupa nyanghareup ka arah ka katuhu Boh rupa rupa geus kapanggih dina lukisan kuna On sakabeh bukti sigana nembongkeun yen urang jaman prasejarah éta boh ambidextrous atawa ngeunaan sarua gampang ditinggalkeun - .. atawa ka katuhu - dibikeun. Tapi, dina Perunggu Age gambar robah The pakakas jeung pakarang anu kapanggih tina periode nu lolobana dijieun pikeun katuhu -... dibikeun pamakéan The predominance bener - handedness antara manusa ayeuna geus tétéla geus dijieun.