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|2016-02-23T15:39:25-05:00February 23rd, 2016|Comments Off on Microsoft Hack-a-thon for Girls 13-18 Years Old