Titlebook: Social Responsibility in Tourism; Applications, Best-P Martina Pásková,Josef Zelenka Book 2024 The Editor(s) (if applicable) and The Author

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Nebulae in History,sulted in the search for nebulous objects, and the introduction of catalogs in the eighteenth century. These events were closely followed by the realization that not all nebulae were similar but represented different astronomical objects.