The following events took place in 2170 CE, or Common Era.
- The Alliance establishes a colony on Yamm.
- Batarian slavers attack several human colonies in the Terminus system, including Mindoir and Cailloux.
- Cerberus agent Paul Grayson sabotages an Eldfell-Ashland Energy vessel, causing it to explode in the atmosphere of the human colony Yandoa. As a result, the population are exposed to dust-form element zero. Of all the children born that year, only thirty-seven turn out to be healthy.
2169 CE - 2170 CE - 2171 CE