Migrate wiki content to repository structure and standardize frontmatter on dev

Important-Dates.md

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+---
+title: "Important Dates"
+category: "meetup"
+order: 3
+description: "Upcoming meeting schedule, challenge deadlines, and community calendar."
+tags:
+  - meetup
+  - calendar
+---
+[← Back to Home Page](Home)
+
+# Important Dates & Schedule
+
+Mark your calendars for our upcoming 2026 meeting dates (typically the 3rd Wednesday of each month from 6:00 PM - 8:00 PM):
+
+| Date | Event / Theme | Location |
+| :--- | :--- | :--- |
+| **September 16, 2026** | **Practi"FALL" Prints Challenge Judging** | West Fargo Public Library |
+| **October 21, 2026** | **October Meetup & Halloween Prints** | West Fargo Public Library |
+| **November 18, 2026** | **November Meetup & Multi-Material Printing** | West Fargo Public Library |
+| **December 16, 2026** | **Annual Holiday Maker Showcase** | West Fargo Public Library |
+
+## Meeting Location
+
+**Standard Location:**
+West Fargo Public Library  
+215 Third St. E.  
+West Fargo, ND 58078  
+
+*(Note: We will occasionally have one-off meetings at alternative venues, which will be announced in advance.)*
+
+## Regular Meeting Format
+
+- **6:00-6:15 PM**: Arrival & Social Time
+- **6:15-6:45 PM**: Industry News & Updates (John)
+- **6:45-7:15 PM**: Show & Tell (includes challenge judging)
+- **7:15-7:45 PM**: Featured Presentation
+- **7:45-8:00 PM**: Closing & General Discussion
+
+## Contact Information
+
+[feedback@fargo3d.com](mailto:feedback@fargo3d.com)
+
+---
+
+**Last Updated**: September 3, 2026