Rushewar zamanin Bronze na Marigayi lokaci ne na rugujewar al'umma a cikin karni na 12 KZ, tsakanin c.1200 da 1150. Rushewar ta shafi babban yanki na Gabashin Bahar Rum (Arewacin Afirka da Kudu maso Gabashin Turai) da Gabas ta Tsakiya, musammanMasar , Gabashin Libya, Balkans, Aegean, Anatolia, da Caucasus.Ba zato ba tsammani, tashin hankali, da ruguza al'ada ga yawancin wayewar Bronze Age, kuma ya kawo koma bayan tattalin arziki ga ikon yanki, musamman ya haifar da zamanin Duhu na Girka.Tattalin arzikin gidan sarauta na Mycenaean Girka, yankin Aegean, da Anatolia waɗanda ke da alaƙa da zamanin Bronze Age sun wargaje, suna rikiɗa zuwa ƙananan al'adun ƙauye na zamanin Dark Ages na Girka, wanda ya kasance daga kusan 1100 zuwa farkon sanannun zamanin Archaic a kusa. 750 KZ.Daular Hittiyawa ta Anatoliya da Levant ta ruguje, yayin da jihohi kamar Masarautar Assuriya ta Tsakiya a Mesofotamiya da sabuwar Masarautar Masar suka tsira amma sun raunana.Akasin haka, wasu mutane kamar Finisiyawa sun more ’yancin kai da iko tare da raguwar sojojin Masar da Assuriya a Yammacin Asiya.Dalilin da ya sa kwanan nan na sabani 1200 KZ ya zama farkon ƙarshen ƙarshen zamanin Bronze ya koma ga wani ɗan tarihi na Jamus, Arnold Hermann Ludwig Heeren.A cikin daya daga cikin tarihinsa na tsohuwar Girka daga 1817, Heeren ya bayyana cewa zamanin farko na tarihin Girkanci ya ƙare a kusan 1200 KZ, wanda ya danganta wannan kwanan wata akan faduwar Troy a 1190 bayan shekaru goma na yaƙi.Daga nan ya ci gaba a cikin 1826 har zuwa ƙarshen daular Masar ta 19 har zuwa kusan 1200 KZ.A cikin sauran ƙarni na 19 A.Z., a cikin shekara ta 1200 KZ, an ci gaba da yin wasu abubuwan da suka faru a cikin shekara ta 1200 KZ, ciki har da mamayar mutanen Teku, mamayewar Dorian, faɗuwar Girka ta Mycenaean, kuma a ƙarshe a cikin 1896 KZ an fara ambaton Isra'ila a kudancin Levant. rubuce akan Merneptah Stele.Tun a karni na 19 an gabatar da ra'ayoyin gasa na musabbabin rugujewar shekarun Bronze Age tun daga karni na 19, tare da yawancin abin da ya shafi lalata birane da garuruwa.Waɗannan sun haɗa da fashewar aman wuta, fari, cututtuka, girgizar ƙasa, mamayewar mutanen Teku ko ƙaura na Dorians, tabarbarewar tattalin arziki saboda ƙara ƙarfin ƙarfe, da canje-canjen fasahar soja da hanyoyin da suka kawo raguwar yaƙin karusai.Duk da haka, bincike na baya-bayan nan ya nuna cewa girgizar kasa ba ta da tasiri kamar yadda aka yi imani da ita a baya.Bayan rugujewar, canje-canje a hankali a cikin fasahar ƙarfe na ƙarfe ya haifar da ƙarshen Iron Age a cikin Eurasia da Afirka a cikin ƙarni na 1 KZ.