Patentes:

Patente de um vaso sanitário de 1900, DECECO COMPANY US764912A: https://worldwide.espacenet.com/patent/search/family/002833399/publication/US764912A?q=pn%3DUS764912A

Livros sobre o assunto:

1. Perdew, L. (2015). How the Toilet Changed History. Estados Unidos: Abdo Publishing: https://www.google.com.br/books/edition/How_the_Toilet_Changed_History/zeMuCgAAQBAJ?hl=pt-BR&gbpv=1&dq=toilet%20invention&pg=PA17&printsec=frontcover

2. Jonathan Kinghorn. A PRIVVIE IN PERFECTION. Sir John Harrington's Water Closet: https://historyofbath.org/images/BathHistory/Vol%2001%20-%2007.%20Kinghorn%20-%20A%20Privvie%20in%20Perfection%20-%20Sir%20John%20Harrington's%20Water%20Closet.pdf

3. The Palace of Westminster and Westminster Abbey including St. Margaret’s Church. World heritage site management plan. 2007: https://www.westminster.gov.uk/media/document/world-heritage-site-management-plan

Documentários sobre o assunto:

History Channel - A história do vaso sanitário | GRANDE HISTÓRIA E PEQUENAS COISAS | HISTORY: https://youtu.be/07vRE8U0Gvc

Science Channel - Toilets: Behind the Flush: https://www.youtube.com/watch?v=q9RMoKmbamM

Bill Gates - Sanitation showcase: https://www.youtube.com/watch?v=wqcknE_Ic_g

Bill Gates - Flush with innovation: https://www.youtube.com/watch?v=TGEoK17CoD4

DW Documentary - The great toilet battle - Does Bill Gates have a solution: https://www.youtube.com/watch?v=QKGDl_suBNI&t=86s

Sites:

1. Situação da Coleta e do tratamento de esgotos: http://atlasesgotos.ana.gov.br/

2. How did the toilets look like in Medieval times? https://www.quora.com/How-did-the-toilets-look-like-in-Medieval-times

3. The Throne of Sir John Harrington: https://www.historic-uk.com/CultureUK/The-Throne-of-Sir-John-Harrington/

4. The Arrival Of The Modern Toilet: https://ultimatehistoryproject.com/the-advent-of-the-flush-toilet.html

5. UK Parliament - The 1848 Public Health Act: https://www.parliament.uk/about/living-heritage/transformingsociety/towncountry/towns/tyne-and-wear-case-study/about-the-group/public-administration/the-1848-public-health-act/

6. Chloride-of-lime: https://sentence.yourdictionary.com/chloride-of-lime

7. Give the chemical name and formula of chloride of lime: https://www.vedantu.com/question-answer/give-the-chemical-name-and-formula-of-chloride-class-11-chemistry-cbse-5f5fb67768d6b37d16360943

8. Copo de Pitágoras: https://www.ufrgs.br/amlef/2019/09/01/copo-de-pitagoras/

9. Bellis, Maria. "A história do encanamento." ThoughtCo, 16 de fevereiro de 2021, thinkco.com/history-of-plumbing-1992310.

10. Nguyen, Tuan C. "The History of the First Toilet." ThoughtCo, Jan. 26, 2021, thoughtco.com/who-invented-the-toilet-4059858.

11. Gill, N.S. "Roman Baths and Hygiene in Ancient Rome." ThoughtCo, Feb. 16, 2021, thoughtco.com/hygiene-in-ancient-rome-and-baths-119136.

12. Vasos-comunicantes: https://brasilescola.uol.com.br/fisica/vasos-comunicantes.htm

13. Origem do termo patente: https://www.google.com.br/books/edition/Dicion%C3%A1rio_de_Porto_Alegr%C3%AAs_Edi%C3%A7%C3%A3o_r/y4xaEAAAQBAJ?hl=pt-BR&gbpv=1&dq=origem+do+termo+patente+para+vaso+sanitario&pg=PT329&printsec=frontcover

14. Origem do termo patente: https://www.folhadelondrina.com.br/reportagem/identificando-um-vocabulario-pe-vermelho-989039.html

Consultas realizadas na wikipedia, com muito bom senso é claro:

1. Flush toilet: https://en.wikipedia.org/wiki/Flush_toilet

2. Civilização do Vale do Indo: https://pt.wikipedia.org/wiki/Civiliza%C3%A7%C3%A3o_do_Vale_do_Indo

3. John Harington: https://pt.wikipedia.org/wiki/John_Harington

4. Sifão: https://pt.wikipedia.org/wiki/Sif%C3%A3o

5. Great Stink: https://en.wikipedia.org/wiki/Great_Stink

6. Alexandre Cumming: https://en.wikipedia.org/wiki/Alexander_Cumming

7. Calcium hypochlorite: https://en.wikipedia.org/wiki/Calcium_hypochlorite

8. Vasos comunicantes: https://pt.wikipedia.org/wiki/Vasos_comunicantes

Entre tantas outras pesquisas que não lembrei de anotar aqui. Acredito que com estas referências, já consigo dar uma direcionada em quem tiver interesse de pesquisar sobre o tema.

A maioria das imagens e vídeos estão em domínio público, são autorais de Invenções na História ou são cortesia de:

1. Wellcome Collection;

2. [Credit: Abhilashdvbk by Wikimedia] The drainage system at Lothal 2: Abhilashdvbk, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons. https://commons.wikimedia.org/wiki/File:The_drainage_system_at_Lothal_2.JPG

3. [Credit: Avantiputra7 by Wikimedia]. Indus Valley Civilization, Mature Phase (2600-1900 BCE): Avantiputra7, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons. https://commons.wikimedia.org/wiki/File:Indus_Valley_Civilization,_Mature_Phase_(2600-1900_BCE).png

4. [Credit: Carole Raddato by Wikimedia]. Reconstruction drawing showing the communal latrines in use, Housesteads Roman Fort. Carole Raddato from FRANKFURT, Germany, CC BY-SA 2.0 <https://creativecommons.org/licenses/by-sa/2.0>, via Wikimedia Commons. https://commons.wikimedia.org/wiki/File:Reconstruction_drawing_showing_the_communal_latrines_in_use,_Housesteads_Roman_Fort_(Vercovicium)_(30696479498).jpg

5. [Credit: Philg88 by Wikimedia]. Bazellgette Sewer Network EN. Philg88; Attribution: Wikimedia Foundation (www.wikimedia.org), CC BY 4.0  https://creativecommons.org/licenses/by/4.0, via Wikimedia Commons. https://commons.wikimedia.org/wiki/File:Bazellgette_Sewer_Network_EN.svg

6. [Science Museum London by welcome collection] Model of the ‘Optimus’ water closet, England, 1870. Credit: Science Museum, London. Attribution 4.0 International (CC BY 4.0): https://wellcomecollection.org/works/ypvy5sj8/items

7. [Burkay Canatar by Pexels]: https://www.pexels.com/photo/old-town-with-historic-buildings-4346876/

8. Photo by Marcin Jozwiak: https://www.pexels.com/photo/aerial-view-of-wastewater-treatment-plant-3808769/

9. Photo by Pok Rie: https://www.pexels.com/photo/aerial-shot-of-green-trees-3923724/

10. Photo by Rafael Recinos: https://www.pexels.com/photo/privy-on-meadow-9728272/