Short answers, pulled from the story.
Cebu is a 16th-17th century Spanish pronunciation of the native name Sugbo. The Cebuano word sugbu means "to dive into water," and the lexicographer Mateo Sanchez defined it as "to put or place partially into the water" or "as someone stepping into water, but not totally." The name traces to the Proto-Philippine word sug(e)bu, meaning "to wade into water."
Ferdinand Magellan landed in Cebu on the 7th of April 1521 and was welcomed by Rajah Humabon. He was killed shortly afterward in the Battle of Mactan, and the surviving members of his expedition left Cebu after several of them were poisoned by Humabon.
Sinulog is a dance prayer ritual of pre-Hispanic indigenous origin held every third Sunday of January. The dancer moves two steps forward and one step backward to the rhythmic sound of drums, a movement said to resemble the current (sulog) of the river. The festival celebrates the Santo Nino de Cebu, the same religious figure presented to Rajah Humabon's wife by Italian chronicler Antonio Pigafetta in 1521.
Cebu City earned the nickname Queen City of the South because of its economic importance and regional influence. It is the prime trading center of the southern Philippines, the country's main domestic shipping port, and the regional center of Central Visayas, with its metropolitan area extending commercial, educational, and healthcare influence into Mindanao.
Ceboom is a portmanteau of "Cebu" and "boom" referring to the rapid economic development of Cebu City and Cebu Province from the early 1990s to the early 2000s. The growth accelerated after Typhoon Ruping struck in 1990, prompting local authorities to rethink priorities and invest in infrastructure, and eventually spread to neighboring cities as far north as Danao and as far south as Carcar.
BisRock is a music genre that originated in Cebu City. The term was coined by Cebuano writer Januar E. Yap in 2002. Notable BisRock bands include Missing Filemon, Junior Kilat, Phylum, Rundown Genova, and Scrambled Eggs, and Cebu City is regarded as the birthplace of the genre.