Formation of the Byrnum Maw

The formation of the Byrnum Maw nebula in the Inner Rim Territories occurred centuries before 40 BBY. After the event, the hyperspace routes near the nebula were disrupted and rendered unusable, isolating neighboring systems, such as the Pijal system, from the wider galaxy. In 40 BBY, Republic scientists charted a path through the Byrnum Maw and used two hyperspace anchors to stabilize a central portion of the nebula allowing for the establishment of the hyperspace route known as the Pijal Hyperspace Corridor.

Text and facts from the “Formation of the Byrnum Maw” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.