What are some specific events that lead up to the civil war?

In 1957, james vicary reported that subliminal messages in a movie reel ("eat popcorn") caused viewers to rush to the concessions stands. although his findings became famous, the problem is that

Aresearcher proposes to conduct a study at a foreign site. the research has been determined to be exempt from the federal regulations by institutional policy. according to federal regulations, is review required at the foreign site? if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted but still require review at the u.s. site by the institution’s irb. if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted. if a proposed study qualifies for exemption, federal regulations do require review at the foreign site where it will be conducted. if a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted, but still require review by the institutional official at the local site.

Who is the speaker in this excerpt from book 13 of homer’s odyssey, and what inference can you make from the tone?