"On This Date in History" Calendar
1957: First NSA Open House
![](https://cdn.firespring.com/images/4cea9668-9911-451c-86f7-2d956b432543.jpg)
21 September 1957: The NSA hosted its first open house.
Photo is of the NSA Ops Building from NSA.gov.
"On This Date in History" Calendar
21 September 1957: The NSA hosted its first open house.
Photo is of the NSA Ops Building from NSA.gov.