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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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20 agos 1791 año - Шапп построил первый семафорный аппарат
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Sofia Andreasyan
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18 oct 2017
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fecha:
20 agos 1791 año
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~ 234 years ago
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