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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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Пример длительного события (31 dic 1997 año – 1 ene 2001 año)
Añadido al timeline:
Развитие научных школ по информатизации образования
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30 sep 2018
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767
fecha:
31 dic 1997 año
1 ene 2001 año
~ 3 years
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