Microsoft Hack-a-thon for Girls 13-18 Years Old Microsoft Hack-a-thon for Girls 13-18 Years Old N/A September 21, 2019 Read more View full calendar By MathSP|2025-10-23T21:06:35-04:00October 23rd, 2025|Comments Off on Microsoft Hack-a-thon for Girls 13-18 Years Old