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The interaction begins with a horizontal timeline ruler at the top of the screen. As the user scrubs horizontally, the years glide and snap into place. Selecting a specific year (2005) triggers a fluid transition where the corresponding article content slides up from the bottom of the viewport while fading in. The user then scrolls vertically through the rich-text article, which features embedded images, quotes, and links, while the timeline header gracefully fades out of view.
