Luigi's Mansion timeline

6000 BC
Zuul and King Boo, the happy duo are worshiped.

1860
The Appleston family was formed

1865
The Appleston family killed by Bogmire.

1866
The Appleston family's funeral.

1984
Ghostbusters was formed.

2001
Luigi first visited.

2012
Luigi returns to his mansion.

2016
Peter Venkman hosts the World of Pyshic.

2017
Peter Venkman II promotes Luigi while he is still young.

2018
Luigi retires.