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208 Ntụnyere ihe omenkà.
nnukwu ihe ịchọ mma mosaic, ya mere a maara ya ugbu a dị ka "mosaic ụlọ alakụba." Ụfọdụ ndị chere na ọ bụ ihu ụlọ ụka a jere ozi dị ka ihe nlereanya maka nke S. Mark, 'enice (No. 85).
Nzukọ-nsọ nke ndị ozi dị nsọ, Constantinople, Constantine Onye Ukwu tọrọ ntọala, mana Justinian wughachiri ya, na bibiri na a.d. 1463, ime ụzọ maka ụlọ alakụba nke Sultan Mahomet II., bụ ụdị nke abụọ nke atụmatụ Byzantine, na ọ bụ na-adọrọ mmasị dị ka ihe atụ nke S. Mark, Venice (Mba. 84, 85, 86) (lee n'okpuru).
S. Vitale, Ravenna (a.d. 526-547) (Mba. 83 c, d), onye prototype bụ Temple nke Minerva Medica na Rome (Mba. 83 A, b), bụ octagonal na atụmatụ, octagon dị n'ime nke 50 ụkwụ dị nke elu nke na-enweghị ụkwụ mechiri. The apsidal chancel na-emepe site n'ime octagon, site a square n'ọnụ mmiri na-egbutu site ná mpụta wara wara. Mmekọrịta nke chancel na octagon na-aga nke ọma emebere ya. Ekwesiri iburu n'uche na ihe ndi ozo nke asaa nke ime octagon nwere ogidi enịm na ọkara okirikiri, na-ebu gburugburu gallery emekarị na Eastern ụka. N'ọtụtụ nkọwa Byzan- a na-ahụ mmetụta tine. Dome bụ ite ụrọ mejuru; na-echebe site a osisi n'elu ụlọ, si otú difTering na-ewu si Ihe atụ ndị Rom.
Ụka wuru Charlemagne, na nwere ili ya, na Aix-la-Chapelle (Mmba 83 e, f), sitere na nzụkọ a (hụ ibe 261).
S. Mark, Venice (Ọmụmụ 84, 85 na 86), ka e wuru, maka ọtụtụ akụkụ, n'etiti mgbasa ozi. 1063-1071, ogidi na marble A na-agbakwunye mosaics na mpụta n'etiti 1 100-1350. Venice bụ site na ọnọdụ otu n'ime njikọ njikọ dị n'etiti Alaeze Ukwu Byzantine na Franconian, na nnukwu ebe nchekwa nke okporo ụzọ n'etiti East na West, nke pụtara ìhè na Venetian ije.
Atụmatụ S. Mark (No. 84 c) dị n'ụdị Grik obe, nke aka nhata, nke dome kpuchie n'etiti (ụkwụ 42 na dayameta), na otu n'elu ogwe aka ọ bụla nke obe, ma na-ewepụta ya site na Nzukọ-nsọ nke Ndị-ozi dị nsọ na Constantinople. Ọ kwesiri iburu n'uche na oghere square, nke na-ebu dome, a na-amapu ya n'ala na ọkwa gallery : gallery Arcade na-ejikọta piers n'akụkụ ọ bụla, omimi nke gallery ahụ ịbụ nke pier. Ihe mkpuchi ahụ na-ejupụta ogwe aka ọdịda anyanwụ nke obe ka scjuare na atụmatụ.
N'ime ime (No. 84 a na 86) na-ejupụta nke ọma na agba marbles na-ekpuchi akụkụ ala nke mgbidi; n'elu, na ịgbatị n'ime otu nnukwu elu n'elu vault na dome, bụ mkpuchi nke nwere agba mara mma iko mosaic, nke a na-arụ ọrụ ihe oyiyi nke ndị nsọ gwakọtara ya Ihe ngosi site na ndụ ha, setịpụrụ site na nnukwu ndabere nke ọla edo. Mosaic, n'ezie, bụ ezigbo ihe ịchọ mma nke ụka ahụ, ka emebere nkọwa ihe owuwu ụlọ niile.
