Simplify the following text for a Grade 9 native English-speaking person.
Original: The club who wins the Scottish First Division is promoted to the Scottish Premier League ( SPL ) , if they meet stadium criteria .
Simplified: The division was introduced in 1975 â `` 76 in Scottish football to replace the old Scottish Football League Division Two . It contains ten teams and each year the top team is promoted to the Scottish Premier League , subject to meeting the stadium criteria .