Born in:
* Location: "She was born in a small village in Italy."
* Year: "He was born in 1998."
* Era: "They were born in the age of the internet."
Born on:
* Date: "He was born on July 4th."
* Day of the week: "She was born on a Tuesday."
* Specific event: "The idea was born on a cold winter night."
Here are some examples in complete sentences:
* "I was born in a bustling city, but I grew up in a quiet town."
* "The famous author was born in 1850, and his works are still celebrated today."
* "Our son was born on a stormy day, but he's been a ray of sunshine ever since."
* "The company was born on a simple idea - to make life easier for busy people."
Remember, "born in" is typically used for places and time periods, while "born on" is used for specific dates and events.