H2No
First, we find out what historical events are referenced by the clues, what city they take place in, and the year. (Not all clues can be exactly identified before finding what they have in common.)
| Clue | Reference | City | Year |
|---|---|---|---|
| a glassware company was founded by Neumann | Ajka Crystal | Ajka, Hungary | 1878 |
| a sung-about wooden bridge began to be replaced with a stone one | London Bridge | London, England | 1176 |
| being the state capital for a day | Kingston, Tennessee | Kingston, US | 1807 |
| a rebellion protesting Britain's rule started on a holiday | Easter Rising | Dublin, Ireland | 1916 |
| a man began a project to dig his own subway system | Leonid Mulyarchik | Lebedyan, Russia | 1984 |
| a landmark roller coaster named after a weather event was opened | Coney Island Cyclone | Brooklyn, US | 1927 |
Then, we notice that what all the cities have in common is that there was a large non-water flood, approximately when the clue references x years before/after. The title, H2No, confirms that we are on the right track. Looking at the non-water floods, we write down the specific building where the flood happened, as these match the given enumerations. We see that the locations are given in alpha order, so the data will need to be sorted later.
| City | Flood Material | Enum | Location | Flood Year |
|---|---|---|---|---|
| Ajka, Hungary | Red mud | (5 11) | Ajkai Timfoldgyar | 2010 |
| London, England | Beer | (5 4 7) | Horse Shoe Brewery | 1814 |
| Kingston, US | Coal fly ash slurry | (8 6 5) | Kingston Fossil Plant | 2008 |
| Dublin, Ireland | Whiskey | (8 6's storehouse) | Laurence Malone | 1875 |
| Lebedyan, Russia | Fruit juice | (7 warehouse) | PepsiCo | 2017 |
| Brooklyn, US | Chocolate | (8 3 7 factory) | Rookwood and Company | 1919 |
We notice that the year that the flood happened is close to, but not exactly, the year referenced by the clue. The flavortext references differences, so we subtract the clued year from the actual year.
| Clued Year | Flood Year | Diff | Location | Ans |
|---|---|---|---|---|
| 633 years after 1176 = 1809 | 1814 | 5 | HORSESHOEBREWERY | E |
| 54 years before 1916 = 1862 | 1875 | 13 | LAURENCEMALONE | N |
| 20 years before 1927 = 1907 | 1919 | 12 | ROOKWOODANDCOMPANY | C |
| 184 years after 1807 = 1991 | 2008 | 17 | KINGSTONFOSSILPLANT | A |
| 124 years after 1878 = 2002 | 2010 | 8 | AJKAITIMFOLDGYAR | M |
| 30 years after 1984 = 2014 | 2017 | 3 | PEPSICO | P |
Finally, we index by the difference and sort by the year of the flood to get ENCAMP.