Procopius wrote in 545 that "the Sclaveni and the Antae actually had a single name in the remote past; for they were both called Spori in olden times." He describes their social structure and beliefs:
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What did Procopius write about in olden times?
Ah, so.. unanswerable

German historian Reinhart Koselleck claimed that "On the Continent there were two social structures that left a decisive imprint on the Age of Enlightenment: the Republic of Letters and the Masonic lodges." Scottish professor Thomas Munck argues that "although the Masons did promote international and cross-social contacts which were essentially non-religious and broadly in agreement with enlightened values, they can hardly be described as a major radical or reformist network in their own right." Many of the Masons values seemed to greatly appeal to Enlightenment values and thinkers. Diderot discusses the link between Freemason ideals and the enlightenment in D'Alembert's Dream, exploring masonry as a way of spreading enlightenment beliefs. Historian Margaret Jacob stresses the importance of the Masons in indirectly inspiring enlightened political thought. On the negative side, Daniel Roche contests claims that Masonry promoted egalitarianism. He argues that the lodges only attracted men of similar social backgrounds. The presence of noble women in the French "lodges of adoption" that formed in the 1780s was largely due to the close ties shared between these lodges and aristocratic society.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): According to German historian Reinhart Koselleck, which two social structures left a decisive imprint on the Age of Enlightenment?
Ah, so.. the Republic of Letters and the Masonic lodges

Finally, in the 1990s, Internet Protocol-based videoconferencing became possible, and more efficient video compression technologies were developed, permitting desktop, or personal computer (PC)-based videoconferencing. In 1992 CU-SeeMe was developed at Cornell by Tim Dorcey et al. In 1995 the first public videoconference between North America and Africa took place, linking a technofair in San Francisco with a techno-rave and cyberdeli in Cape Town. At the Winter Olympics opening ceremony in Nagano, Japan, Seiji Ozawa conducted the Ode to Joy from Beethoven's Ninth Symphony simultaneously across five continents in near-real time.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When did Nagano Japan take part in the first public video-conference linking two continents?
Ah, so..
unanswerable