Giant black hole at cosmic dawn….what was before dawn?

But my question is what was before dawn? What was before the Big Bang?

Giant black hole at cosmic dawn | EarthSky.org

Giant black hole at cosmic dawn | EarthSky.org

Meet J1342+0928, now the most distant quasar yet known, containing the most-distant-yet supermassive black hole. Both exist at a time just 690 million years after the Big Bang.

Source: earthsky.org/space/giant-black-hole-at-cosmic-dawn?mc_cid=2866daf8d8