Insert missing commas : Corn Flakes were invented by acci | 📣 Quiz Masters 🇬🇧

Insert missing commas :

Corn Flakes were invented by accident in Battle Creek Michigan. John Kellogg left cooked wheat sitting out and his mistake led to a new cereal.

Answer: Corn Flakes were invented by accident in Battle Creek, (1) Michigan. John Kellogg left cooked wheat sitting out, (2) and his mistake led to a new cereal.

TIP: 1st case — The day of the week is separated from rest of the date with a comma.
2nd case — Coordinating conjunctions, like and or but, join two complete sentences and are preceded by a comma. Add. info: Although the comma can sometimes be omitted if both clauses are short, the AP Stylebook, Chicago Manual of Style, and New Hart's Rules suggest using a comma to join two independent clauses that are linked by a coordinating conjunction.