Short answers, pulled from the story.
Portland was officially incorporated on the 8th of February 1851 with over 800 inhabitants. The settlement included a steam sawmill, a log cabin hotel, and a newspaper called the Weekly Oregonian.
Francis W. Pettygrove won two out of three coin tosses against William Overton to name the city Portland after his home state of Maine. The coin used for this decision is now known as the Portland Penny and is displayed at the Oregon Historical Society headquarters.
The May 1948 flood destroyed Vanport which eliminated the only integrated neighborhood in the area. Displaced residents were forced to resettle in neighboring areas where they faced police hostility and mortgage discrimination.
Mount St. Helens erupted on the 18th of May 1980 and has dusted the city with ash since that date. This highly active volcano is located northeast of the city in Washington state and is easily visible on clear days.
Portland operates under a mayor-council government system that has been in effect since the 1st of January 2025. The current form was approved by voters in a 2022 ballot measure with first elections held in 2024.