How many years pass between the events of Return of the Jedi and The Force Awakens and what happens during that time

Years between Return of the Jedi and The Force Awakens:

Events during those years:

Rise of the First Order: The remnants of the Galactic Empire form the First Order, a technologically advanced military force.
Luke Skywalker's Jedi Academy: Luke Skywalker establishes a Jedi training academy to rebuild the Jedi Order, but it is destroyed by his fallen apprentice, Kylo Ren.
Han Solo and Leia Organa's Children: Han Solo and Leia Organa have three children: Ben Solo (Kylo Ren), Jyn Erso, and Rey.
Kylo Ren's Corruption: Ben Solo is seduced to the dark side by Supreme Leader Snoke and becomes Kylo Ren, leader of the Knights of Ren.
Luke's Exile: After the destruction of his academy, Luke goes into self-imposed exile on the remote planet Ahch-To.

DHS DJ40W 3-Star Ping Pong Balls ABS New Material Professional ITTF Approved 40+ Table Tennis Balls for WTT Competition 6pcs/Box
$10.69

DHS DJ40+ 3 Stars Ping Pong Balls Professional 40+ Seamed Table Tennis Balls ABS New Material for WTT Competition ITTF Standard
$10.69

DHS DJ40+ 3 Stars Ping Pong Ball ITTF Standard 40+ Professional Table Tennis Balls ABS New Material for 2020 WTT Competition
$8.69

Original DHS 40+ 3 stars new cell dual table tennis ball new technology seam ball for ping pong racket game wholesales 10 balls
$90.55

DHS 2020 World Table Tennis Championships Dedicated Table Tennis 3-Star 40+Three Star Professional Competition WTT Balls
$170.47

DHS D40+ 3Star preferred ABS Table Tennis Balls
$10.23

Original Dhs Palio Sanwei 729 40+ 3 Stars New Table Tennis Ball New Technology For Ping Pong Racket Ittf Approved
$6.42

Original DHS 40+ 3 stars new cell dual table tennis ball new technology seam ball for ping pong racket game wholesales 10 balls
$111.13

Original DHS 40+ 3 stars new cell dual table tennis ball new technology seam ball for ping pong racket game wholesales 10 balls
$92.61

DHS Top Quality 3 Stars Table Tennis Balls 40 MM New Material Balls With Color Box For International Standard Competition
$176.08

Original 729 DHS JOOLA PALIO SANWEI 40+ 3 stars new table tennis ball new technology for ping pong racket game Olympic Games
$7.34

DHS 2020 World Table Tennis Championships Dedicated Table Tennis 3-Star 40+Three Star Professional Competition WTT Balls
$164.01

How many years pass between the events of Return of the Jedi and The Force Awakens and what happens during that time?