The modern trampoline was created by American gymnast George Nissen together with his coach Larry Griswold in the 1930s, with their first real trampoline built around 1934–1936 at the University of Iowa.

Who Created the Trampoline?

Quick Scoop

If you’re wondering “who created the trampoline?” the short answer is:

  • Inventors: George Nissen and Larry Griswold.
  • When: Early–mid 1930s, with a key prototype in 1934 and a “first modern trampoline” around 1935–1936.
  • Where: University of Iowa, USA.
  • Why: They wanted a better training tool for gymnastics and tumbling, inspired by circus trapeze safety nets.

From a homemade “bouncing rig” in a gym basement to a backyard classic, the trampoline’s story starts with two athletes tinkering with metal frames, canvas, and springs.

Short Origin Story (Mini Narrative)

Picture Iowa in the early 1930s: a young gymnast and diver, George Nissen , watches circus trapeze artists drop into their safety nets and bounce back up. He starts wondering what would happen if that bounce could be controlled and used over and over for training and tricks.

At the University of Iowa, Nissen teams up with his gymnastics coach, Larry Griswold , who is a skilled tumbler. In a local YMCA basement, they stretch canvas across an angle-iron frame and attach it with rubber or tire inner-tube springs, gradually shifting to coil springs to get more lift. That experimental setup becomes the first recognizable modern trampoline.

They initially call it things like a “bouncing rig,” then later Nissen discovers the Spanish word “trampolín” for diving board, adds an “e,” and registers Trampoline as a trademark.

Key Facts in Bullet Points

  • Core creators:
    • George Nissen – American gymnast/diver and main inventor of the modern trampoline.
* Larry Griswold – His gymnastics coach and tumbling expert, co-developer of the prototype.
  • Timeline:
    • Early 1930s: Nissen gets the idea after watching circus safety nets in action.
* 1934: Nissen and Griswold build a prototype trampoline from canvas and an angle-iron frame with rubber supports.

* 1935–1936: Widely cited as the birth of the first “modern trampoline.”

* 1942: They found the **Griswold-Nissen Trampoline & Tumbling Company** and start commercial production.
  • Initial use cases:
    • A training tool for gymnasts and tumblers.
* Later used by **military** programs to help pilots and astronauts train spatial awareness.

* Eventually becomes a recreational favorite in homes and trampoline parks worldwide.

A Quick Look at “Earlier” Trampoline Ideas

There are older, trampoline-like ideas, but they’re not the same as the modern trampoline you think of today:

  • Circus folklore – “du Trampolin”:
    • A popular story says a French artist named du Trampolin first experimented with using a trapeze safety net as a bouncing device.
* However, historians note there’s **no documentary evidence** , and the story is likely apocryphal.
  • Ancient and folk practices:
    • Various cultures used stretched animal skins or nets to toss and catch people in ceremonies or performances, which are conceptually similar but not direct ancestors of the modern steel-frame, spring-based trampoline.

So while the idea of bouncing on a stretched surface is old, the modern trampoline design with a metal frame and spring-supported bed is credited specifically to Nissen and Griswold in the 1930s.

Modern Trampoline vs. Early Concepts (HTML Table)

Here’s a structured view that you can plug directly into a page:

html

<table>
  <thead>
    <tr>
      <th>Aspect</th>
      <th>Early / Folklore Devices</th>
      <th>Modern Trampoline (1930s)</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Creators</td>
      <td>Unclear; stories mention a French artist “du Trampolin” (likely apocryphal).[web:2][web:9]</td>
      <td>George Nissen and Larry Griswold at the University of Iowa.[web:1][web:3][web:5][web:9]</td>
    </tr>
    <tr>
      <td>Time period</td>
      <td>Pre-20th-century performances and circus traditions.[web:2][web:8][web:9]</td>
      <td>Prototype around 1934, first modern trampoline by 1935–1936.[web:1][web:3][web:5][web:9]</td>
    </tr>
    <tr>
      <td>Main materials</td>
      <td>Rope nets, animal skins, basic suspension systems.[web:2][web:8][web:9]</td>
      <td>Angle-iron frame, canvas bed, rubber/inner-tube supports, later coil springs.[web:1][web:3][web:4][web:7][web:9]</td>
    </tr>
    <tr>
      <td>Primary purpose</td>
      <td>Circus acts, shows, folk rituals.[web:2][web:8][web:9]</td>
      <td>Gymnastics and tumbling training, then recreation and sport.[web:1][web:2][web:3][web:5][web:9]</td>
    </tr>
    <tr>
      <td>Commercialization</td>
      <td>No standardized commercial product.[web:9]</td>
      <td>Griswold-Nissen Trampoline &amp; Tumbling Company founded in 1942.[web:7][web:9]</td>
    </tr>
  </tbody>
</table>

Any “Latest News” or Forum-Style Buzz?

While trampolines aren’t usually a breaking-news topic, a few themes keep popping up online:

  • Safety and design innovations:
    • Companies highlight safer designs like spring-free trampolines and improved enclosures, refining Nissen’s original concept for modern families.
  • Fitness trends:
    • “Rebounder” mini-trampolines have become a popular home workout tool, promoted as a low-impact way to get cardio and lymphatic benefits while still feeling playful.
  • Nostalgia and culture:
    • Articles now look back on the trampoline as a mid‑20th‑century icon that bounced its way from training equipment into backyard culture and indoor parks.

You’ll also find forum threads where people debate who really “invented” the trampoline, but reputable histories consistently credit Nissen and Griswold for the modern version.

TL;DR

  • Who created the trampoline?
    • George Nissen and Larry Griswold created the first modern trampoline in the 1930s at the University of Iowa.
  • What came before?
    • Older circus nets and bounce devices existed, and there’s a doubtful legend about du Trampolin , but they’re not considered the true modern inventors.
  • Why it matters today?
    • Their invention evolved into today’s backyard trampolines, indoor parks, and fitness rebounders, turning a gymnast’s training tool into a global pastime.

Information gathered from public forums or data available on the internet and portrayed here.