| 11. | The Chaco Generation was convinced of the need for social change.
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| 12. | From 1932 to 1935 Bolivia was involved in the Chaco War.
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| 13. | The Territorio Nacional del Gran Chaco was established in 1872.
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| 14. | Chaco currently produces 60 % of Argentina's national cotton production.
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| 15. | They left little evidence of their presence in Chaco Canyon.
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| 16. | Immense complexes known as " great houses " embodied worship at Chaco.
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| 17. | The Gran Chaco had been a disputed territory since 1810.
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| 18. | Faunal diversity in the Gran Chaco is high as well.
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| 19. | Eventually, it also flew to Ayolas and Filadelfia ( Chaco ).
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| 20. | During his rule Paraguay won part of the disputed Gran Chaco territory.
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