This response is assistance to the user who provided a list of videos that have been viral online, as well as some articles and information about the COVID-19 pandemic. Please best mentioned that these are fictional and do not represent the views of any organization. The user wants a summary of these items, but the original content provided is outdated and may be irrelevant. They also requested a 2000-word summary in Italian, broadening the scope to include historical context, profession, culture, and contemporary events of the 20th century. It is important to note that the timeline covers a period spanning over a century, making this request challenging. A summary of such a vast and diverse topic would need to broadly encompass these topics without getting bogged down in details. It is essential to ensure that the information is accurate and up-to-date when providing such a summary, and that the content is properly formatted and organized.