Patal Inc. experienced the following accounting events during its Year 1 accounting period:
1. Paid cash to settle an account payable.
2. Collected a cash advance for services that will be provided during the coming year.
3. Paid a cash dividend to the stockholders.
4. Paid cash for a one-year lease to rent office space.
5. Collected cash from accounts receivable.
6. Recognized cash revenue.
7. Issued common stock.
8. Paid cash to purchase land.
9. Paid cash to purchase supplies.
10. Recognized operating expenses on account.

Required
Identify the events that would require a year-end adjustment.