# ISO History

#### Overview <a href="#overview" id="overview"></a>

The ISO History section transforms historical survey data into interactive visualizations so you can see trends and patterns over time.

**What you can do:**

* Explore trends for specific ISO standards and countries/locations.
* Apply filters to focus on specific standards, geographic areas, and date ranges.
* Interact with charts to view detailed data points.

**How to use it:**

1. Navigate to the **ISO History** section.
2. Select ISO type, year range, and region filters.
3. View trends in line charts or bar graphs.
4. Hover over chart elements to see detailed values.