This time, numbers with periods on newlines!

1. What a year, we no longer had to write “-” in dates.
2. What a year, Pompeii got buried.
3. What a year, Jimmy Carter got chased by a giant swimmimg rabbit.
4. What a year, the last thing was ever sold without a subscription.

Again but only the last three, and with a newline in front:
79. What a year, Pompeii got buried.
1979. What a year, Jimmy Carter got chased by a giant swimmimg rabbit.
2079. What a year, the last thing was ever sold without a subscription.

Again but only the last two:

1979. What a year, Jimmy Carter got chased by a giant swimmimg rabbit.
1980. What a year, the last thing was ever sold without a subscription.

Again but only the last one:

2079. What a year, the last thing was ever sold without a subscription.