The 38th Parallel South is a circle of latitude that is 38 degrees south of the Earth's equatorial plane. It is significant in geography as it runs through several countries, including Australia, New Zealand, and parts of South America. This latitude is often used as a reference point in various geographical and climatic studies. In the context of historical events, the 38th Parallel South is less commonly referenced than its northern counterpart, the 38th Parallel North, which divides North Korea and South Korea. However, the southern parallel is still important for understanding regional climates and ecosystems, particularly in the Southern Hemisphere.