Rubuta ci gaba don wannan sakin layi - Lokaci na farko, zamanin "masana'antu", ya rufe shekaru daga 1800 zuwa 1938. A waɗannan kwanaki, ana nuna kayayyakin kasuwanci da kuma sababbin fasahohi da aka ƙera. Nunin duniya ya kasance dandamali ne don ilimin kimiyya da fasaha na zamani daga ko'ina cikin duniya. Nunin duniya na 1851 London, 1853 New York, 1862 London, 1876 Philadelphia, Paris 1878, 1888 Barcelona, 1889 Paris, 1891 Prague, 1893 Chicago, 1897 Brussels, 1900 Paris, 1904 St. Louis, 1915 San Francisco
, da kuma 1933 <unk> 34 Chicago sun kasance sananne a wannan batun. An fara gabatar da abubuwan kirkire-kirkire kamar tarho a wannan zamanin. Wannan zamanin ya saita ainihin halayen duniya.