Complex sentence: His father established the first printing press which printed the first newspapers in the Yucatán Peninsula, this attitude seemed problematic towards the Viceroys of New Spain and he was apprehended and sent to jail.
Split into simpler sentences: His father established the first printing press which printed the first newspapers on the Yucatán Peninsula. This seemed problematic towards the Viceroys of New Spain and he was apprehended and sent to jail.