Most subscribers for a Portuguese-language science and technology channel on YouTube
- Who
- Mariana Fulfaro, Iberê Thenório, "Manual do Mundo"
- What
- 20,300,000 total number
- Where
- United States (San Bruno )
- When
- 16 June 2026
The most subscribers for a Portuguese-language science and technology channel on YouTube is 20,300,000, and was achieved by Iberê Thenório and Mariana Fulfaro (both Brazil) with the "Manual do Mundo" channel, as verified on 16 June 2026.
Manual do Mundo is a Brazilian YouTube channel and website specializing in educational and entertainment content. The channel was created in 2008 by journalist Iberê Thenório and his wife Mariana Fulfaro (both Brazil).