The correct order from earliest to latest period is as follows, the life event that is common at each stage is written in front of each stage: 1. Early adult transition: Leaving home. 2. Entering the adult world: Forming lasting relationships. 3. Age 30 transition: Re-evaluation of life choices. 4. Settling down period: Making efforts to fulfill dreams that one has at the early stage. 5. Entering middle adulthood:Mentoring other people. 6. Middle adulthood: Forming a new life structure.