1. In 1850, the Oregon Donation Land Act was signed into law, granting 320 acres of land to each white settler and half that amount to each married woman in the Oregon Territory. This act opened the floodgates for white settlement, ultimately leading to the forced relocation and displacement of Indigenous peoples in the region.

2. March 18, 1925, marked the dedication of the Oregon State Capitol building in Salem. Designed in the art deco style, the building features a golden pioneer atop its dome and intricate murals throughout its interior.

3. On March 18, 1983, the Mount Hood Freeway project was officially abandoned. The proposed highway would have run from Portland to Mount Hood, through the heart of many historic neighborhoods and natural areas. Opposition from community activists and environmental groups ultimately led to the project's demise.

4. In 1990, Governor Neil Goldschmidt signed the Oregon Death with Dignity Act into law, making Oregon the first state to allow physician-assisted suicide for terminally ill patients. The law has since been upheld by the US Supreme Court and has served as a model for similar legislation in other states.

5. On March 18, 2019, Governor Kate Brown signed the Student Success Act into law, which provides $2 billion in funding for Oregon's K-12 public schools over the course of two years. The act aims to reduce class sizes, increase access to early education programs, and support career and technical education.