which are the different languages spoken by the population of the above mentioned empire?
92% German, Polish 5.4%, Kashubian and Masurian languages 6% and some non-German Germanic languages.
German Empire
About 92% of the population spoke German as their first language. The only minority language with a significant number of speakers (5.4%) was Polish (a figure that rises to over 6% when including the related Kashubian and Masurian languages).

The non-German Germanic languages (0.5%), like Danish, Dutch and Frisian, were located in the north and northwest of the empire, near the borders with Denmark, the Netherlands, Belgium, and Luxembourg. Low German was spoken throughout northern Germany and, though linguistically as distinct from High German ("Hochdeutsch") as from Dutch and English, is considered "German", hence also its name. Danish and Frisian were spoken predominantly in the north of the Prussian province of Schleswig-Holstein and Dutch in the western border areas of Prussia (Hanover, Westphalia, and the Rhine Province).

Polish and other Slavic languages (6.28%) were spoken chiefly in the east.
who was not opposed to german unification under prussian leadership before 1870 UNANSWERABLE when did this confederation take place? Hall of Mirrors at the Palace of Versailles in France. what were the problems of reorganization? It was concluded that it was both impossible and undesirable to repress the free utterance of public opinion by reactionary measures. where was the unification occurred? German Empire. when was the above mentioned empire founded? It was founded on 1 January 1871.
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German Empire [SEP] Language
About 92% of the population spoke German as their first language. The only minority language with a significant number of speakers (5.4%) was Polish (a figure that rises to over 6% when including the related Kashubian and Masurian languages). The non-German Germanic languages (0.5%), like Danish, Dutch and Frisian, were located in the north and northwest of the empire, near the borders with Denmark, the Netherlands, Belgium, and Luxembourg. Low German was spoken throughout northern Germany and, though linguistically as distinct from High German ("Hochdeutsch") as from Dutch and English, is considered "German", hence also its name. Danish and Frisian were spoken predominantly in the north of the Prussian province of Schleswig-Holstein and Dutch in the western border areas of Prussia (Hanover, Westphalia, and the Rhine Province).