Tau ntau pua xyoo, cov rooj zaum folding tau suav tias yog ib qho tseem ceeb tshaj plaws ntawm cov rooj tog zaum, lub cim ntawm kev sib raug zoo. Nyob rau hauv ancient civilizations, folding lub rooj zaum tsis tau tsuas yog rau zaum, tab sis kuj siv nyob rau hauv ntau yam formal zaus thiab ceremonies.
Nyob rau hauv ancient Egyptian rooj tog, folding lub rooj zaum yog qhov tseem ceeb tshaj plaws. Lawv txoj kev loj hlob pib nyob ib ncig ntawm 2000-1500 BC. Thaum xub thawj, cov rooj zaum folding yog cov rooj zaum tshwj xeeb ntawm cov tub rog cov thawj coj ntawm kev sib ntaus sib tua, cim lub zog thiab koob meej. Txawm hais tias lub sijhawm dhau los, lub rooj zaum folding tau ua raws li lub zog ntawm lub zog.
