<prompt> Bhala okuqhubekayo kwalesi sigaba - Ngemva kokuphela kwezinsuku ezingu - 1260 nangaphambi kuka - 1844, kwenzeka izenzakalo eziningana ezibalulekile. Ngo - 1755 kwaba nokuzamazama komhlaba okukhulu  <response>: Yishaye iLisbon. Ngo-May 19, 1780, enyakatho-mpumalanga yeMelika kwaba nosuku lobumnyama obungavamile olwalulandelwa inyanga ebomvu njengegazi ngalobo busuku. Ngo-November 13, 1833, kwaba nesikhukhula sezinkanyezi ezinamandla esibizwa ngokuthi iLeonids. Lezi zenzakalo ezintathu kwakucatshangwa ukuthi ziwukugcwaliseka, zilungisa indlela yezenzakalo zokugcina zomlando. 