What happened on June 19, 1981? 1. The heaviest known orange (2.5 kg) was exhibited at Nelspruit, South Africa 2. The sapce shuttle Challenger exploded with school teacher Christa MaCauliff on board 3. Bob Marley died 4. George Washington's dentures were reported missing from a museum 5. John Lennon was shot and killed 6. The first case of AIDS was reported 7. The first space shuttle was launched 8. The final member of Ronald Reagan's cabinet was confirmed Final answers are due Thursday, 7/19 by 6:00 AM EST and must be PMed. Anyone may join at any time.