Mezue ahịrịokwu na-esonụ: Mgbe ọ sụgharịchara "De Beneficiis" nke Seneca na 1418, ọ malitere njem sara mbara na Europe, nke ga-eme ka ọ ghara ịnọ na Portugal ruo afọ iri na-abịanụ. Mgbe o zutere John nke Abụọ nke Castile na Valladolid, ọ gara Hungary, ebe ọ zutere Emperor Sigismund nke Holy Roman, wee banye ọrụ ya. Ọ lụrụ ọgụ na ndị agha Imperial megide ndị Turkey na na
Agha Hussite na Bohemia ma nye ya njem Treviso na Northern Italy na 1422. Na 1424 ọ hapụrụ Alaeze Ukwu Rom Dị Nsọ, buru ụzọ zute Murad nke Abụọ, Sultan nke Alaeze Ukwu Ottoman, n'àgwàetiti Patmọs, wee gaa n'ihu Constantinople, isi obodo nke Alaeze Ukwu Byzantine; ọnọdụ enweghị olileanya nke obodo ahụ megide mwakpo Ottoman emeghị ka ọ ghara inwe mmasị n'ebe ọ nọ. O si Constantinople gaa Ala Nsọ site na Alexandria na Cairo.