Decades: 200s BC 190s BC 180s BC 170s BC 160s BC - **150s BC** - 140s BC 130s BC 120s BC 110s BC 100s BC

Years: 155 BC 154 BC 153 BC 152 BC 151 BC - **150 BC** - 149 BC 148 BC 147 BC 146 BC 145 BC

- Alexander Balas becomes ruler of the Seleucid Empire.
- Hipparchus determines the distance to the Moon, and builds the first astrolabe (approximate dates).
- Start of Third Punic War