Alternate uses, see Number 85

Decades: 0s BC - 0s - 10s - 20s - 30s - 40s - 50s - 60s - 70s - 80s - 90s - 100s

Years: 80 81 82 83 84 85 86 87 88 89 90

Table of contents

1 Events 2 Births 3 Deaths

Events

• Dacians under Decebalus engaged in two wars against the Romans from this year to AD 89.

• Ptolemy, Greek astronomer. (approximate date)