️ Complete the following sentence: The first era, the era of "industrialization", roughly covered the years from 1800 to 1938. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ World exhibitions were platforms for state-of-the-art science and technology from around the world.<unk> World exhibitions were platforms for state-of-the-art science and technology from around the world. World Expositions of 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, and 1933<unk>34 Chicago were notable in this respect. •••••••••••••••••••••••••••••••••••••••• ️<unk>️<unk>️<unk>️