United States of America (USA), yomwe imadziwika ndi dzina loti United States (US kapena US) kapena America, ndi dziko lokhala ndi zigawo 50, chigawo cha feduro, magawo asanu olamulira, ndi katundu wawo. Pamalo a 3.8 miliyoni miliyoni (km 9.8 miliyoni km2), ndi dziko lachitatu - kapena chachinayi padziko lonse lapansi kukhala malo onse. Ambiri mwa dzikolo ali chapakati North America pakati pa Canada ndi Mexico. Pokhala ndi anthu opitilira 328 miliyoni, US ndi dziko lachitatu lokhala ndi anthu ambiri padziko lapansi (pambuyo pa China ndi India). Likulu lake ndi Washington, DC, ndipo mzinda wokhala ndi anthu ambiri ndi New York City. Amwenye a Paleo-Anasamuka ku Siberia kupita kudera la North America zaka 12,000 zapitazo. Kulamulira kwa mayiko a ku Europe kunayamba m'zaka za zana la 16. United States idachokera kumadera khumi ndi atatu a Britain omwe adakhazikitsidwa m'mbali mwa East Coast. Mikangano yambiri pakati pa Great Britain ndi ma koloni idatsogolera ku Nkhondo Yakusintha ku America yokhazikika pakati pa 1775 ndi 1783, kudzetsa ufulu. United States idayamba kufalikira mwamphamvu ku North America m'zaka zonse za zana la 19, pang'onopang'ono kupeza madera atsopano, kuchoka ku Native America komanso kuvomereza mayiko atsopano mpaka 1848 pomwe idayamba. Mkati mwa zaka za m'ma 1800, nkhondo yapakati pa America idapangitsa kuti ukapolo ku United States kuthetsedwe. Nkhondo yaku Spain-ku America ndi Nkhondo Yadziko I idatsimikizira dzikolo kuti ndilo gulu lankhondo lapadziko lonse. United States idatuluka Nkhondo Yadziko II ngati mphamvu yapadziko lonse. Linali dziko loyamba kupanga zida zanyukiliya ndipo ndi dziko lokhalo lomwe adazigwiritsa ntchito kunkhondo. Panthawi ya nkhondo yozizira, United States ndi Soviet Union idachita nawo mpikisano mu Space Race, zomwe zidachitika ndi cholinga cha 1969 Apollo 11, kuwala kwa m'mlengalenga komwe kumayambitsa anthu pa Mwezi. Kutha kwa Cold War ndi kugwa kwa Soviet Union mu 1991 kunasiya United States ngati mphamvu yokhayo padziko lonse lapansi. United States ndi boma la federal komanso demokalase. Ndi membala woyambitsa bungwe la United Nations, World Bank, International Monetary Fund, Organisation of American States (OAS), NATO, ndi mabungwe ena apadziko lonse lapansi. Ndi membala wokhazikika wa United Nations Security Council. Dziko lotukuka kwambiri, United States ndiye chuma chachikulu kwambiri padziko lonse lapansi mwa anthu wamba kuti ndi GDP, yachiwiri kwambiri pakugula mphamvu, ndipo imakhala pafupifupi kotala la GDP yapadziko lonse lapansi. United States ndiyo wobweretsa kunja kwambiri padziko lonse lapansi komanso wotumiza kunja kwambiri kwachiwiri, pamtengo. Ngakhale kuchuluka kwake ndi 4% ya dziko lonse lapansi, limakhala ndi 29.4% ya chuma chonse padziko lapansi, gawo lalikulu kwambiri lazachuma padziko lonse lapansi lomwe limakhazikitsidwa mdziko limodzi. Ngakhale pali kusiyana pakati pa zopeza ndi chuma, United States ikupitiliza kukhala patsogolo pamilandu yachuma, kuphatikiza malipiro apakati, ndalama zapakatikati, chuma chapakatikati, chitukuko cha anthu, gawo lililonse la GDP, ndi kuchuluka kwa ogwira ntchito. Ndi gulu lankhondo lalikulu kwambiri padziko lonse lapansi, lopanga zoposa gawo limodzi mwa magawo atatu a ndalama zankhondo padziko lonse lapansi, ndipo ndi gulu lotsogolera lazandale, zachikhalidwe, ndi asayansi padziko lonse lapansi.Source: https://en.wikipedia.org/
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