// todo need optimize like in event.jsp. Add indexing or not indexing this page. Оптический телеграф в Швеции (1 фев 1792 г. – 1 фев 1880 г.) (Лента времени)
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Оптический телеграф в Швеции (1 фев 1792 г. – 1 фев 1880 г.)

Добавлено на ленту времени:

Таймлайн истории развития телеграфа

ByАлександра
1 ноя 2018

Дата:

1 фев 1792 г.
1 фев 1880 г.
~ 88 years
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