Which event occurred at a redshift around 1100

Question

Quizplus · Accepted Answer

The cosmic microwave background radiation (CMB) was released at a redshift around 1100, which corresponds to the time when the Universe became transparent to light. This is considered as one of the most significant events in the history of the Universe, as it provides vital information on the early Universe and its evolution. The other options listed occurred at different times, with the Big Bang itself occurring at a redshift of infinity, and inflation and the formation of first stars occurring at much later times.

Which Event Occurred at a Redshift Around 1100