[
    {
        "role": "user",
        "content": "What%20was%20the%20first-ever%20braille%20display%3F"
    },
    {
        "role": "assistant",
        "content": "The first refreshable (paperless) Braille display\u2014a device that could mechanically raise and lower dots to form Braille characters for tactile reading\u2014was developed around **1950** by James Bryce at IBM. That early device used perforated paper tapes to store information and formed raised Braille characters on a plastic belt that moved under a reader\u2019s fingers at their chosen speed. ([aph.org](https://www.aph.org/blog/blindness-history-basics-a-brief-history-of-the-refreshable-braille-display/?utm_source=openai))\n\nHere\u2019s a brief timeline of key developments following that initial invention:\n\n---\n\n### Important Milestones After 1950\n\n- **Early 1970s**: Electro-mechanical systems started to emerge, using solenoids (electromagnets) to raise and lower pins to create the Braille dots. Data was still stored on cassette tapes. ([aph.org](https://www.aph.org/blog/blindness-history-basics-a-brief-history-of-the-refreshable-braille-display/?utm_source=openai))\n\n- **1975**: In Germany, Werner Boldt introduced the **Braillex**, one of the first electronic devices with a refreshable Braille display. ([accessibility.com](https://www.accessibility.com/glossary/refreshable-braille-displays?utm_source=openai))\n\n- **1976**: Oleg and Andie Tretiakoff in Paris developed the first **commercially available paperless Braille machine**. Their device stored data on cassette tapes and displayed Braille characters using a solenoid\u2013driven bar that raised and lowered pins one line at a time. ([aph.org](https://www.aph.org/blog/blindness-history-basics-a-brief-history-of-the-refreshable-braille-display/?utm_source=openai))\n\n- **1979**: Telesensory introduced the **VersaBraille**, a portable refreshable Braille device with a 20-cell display that could also serve as a notetaker or terminal connected to a computer. ([aph.org](https://www.aph.org/blog/blindness-history-basics-a-brief-history-of-the-refreshable-braille-display/?utm_source=openai))\n\n---\n\nSo, while the notion of Braille (raised dots you feel with your fingers) dates to the early 19th century (invented by Louis Braille in 1829), the **first working refreshable Braille display**\u2014as in a mechanical or electronic device you could connect to digital information\u2014was Bryce\u2019s device from circa **1950**. If you meant a different kind of \u201cfirst Braille display,\u201d like an embosser or typewriter, I can pull up info on those too."
    }
]