Eclipse 2028 practical guide
The 1922 Wallal Eclipse That Tested Einstein
A remote stretch of the Western Australian coast hosted one of the twentieth century's most consequential science experiments: a total solar eclipse used to test whether gravity bends starlight.
The short version
NASA's solar-eclipse catalogue lists a total solar eclipse on 21 September 1922. An international expedition observed it from Wallal, Western Australia, specifically to test Einstein's 1915 general theory of relativity, and reported results matching Einstein's predicted value.
What the catalogue establishes
NASA's solar-eclipse catalogue lists a total solar eclipse on 21 September 1922, with a path crossing the Indian Ocean and Australia. That entry fixes the date and global geometry. It does not, by itself, explain why this particular eclipse became internationally significant: that requires the documented history of the expedition that travelled to observe it.
Why scientists needed a total eclipse at all
Einstein's 1915 general theory of relativity predicted that a massive body like the Sun would bend the path of light passing near it, by a specific, calculable amount. Ordinarily, starlight near the Sun is not observable because the Sun's own brightness overwhelms it. A total eclipse briefly removes that problem: with the photosphere fully covered, stars close to the Sun's position in the sky become visible and photographable, and their measured positions can be compared with their known positions when the Sun is elsewhere.
Wallal's place in testing relativity
Arthur Eddington's 1919 expeditions to Príncipe and Sobral produced the first eclipse-based measurements supporting Einstein's prediction, and made worldwide news. The 1922 eclipse offered a further, independent test with different equipment, a different observing team, and a different stretch of sky. An international expedition, including the Lick Observatory's director W. W. Campbell, travelled to Wallal on the Western Australian coast, in Nyangumarda Country, because the site sat directly in the path of totality with a reasonable expectation of clear September skies. The expedition's funding came from philanthropist William Crocker, and it drew scientists from Australia, the United States, England, India and Aotearoa New Zealand.
Campbell reported that the Wallal measurements agreed closely with Einstein's predicted deflection value, adding independent weight to the 1919 result at a time when general relativity was still being tested against competing explanations.
What Wallal does and doesn't tell us about 2028
Wallal is on the Western Australian coast, but its coordinates sit south of the sample points this site publishes for the 2028 Kimberley corridor. That means readers should not assume the 1922 and 2028 paths overlap; verify the actual 2028 path at any specific coordinate using the interactive map rather than inferring continuity from shared geography. What Wallal does share with 2028 is scale: both were large, logistically demanding expeditions into remote country, built around a few minutes of totality that could not be repeated if missed.
Why this event still matters for eclipse planning today
The Wallal expedition is a useful reminder that a total eclipse is not only a spectacle but a rare, unrepeatable scientific opportunity, and that remote Australian conditions have shaped serious eclipse expeditions before. Modern travellers face a smaller version of the same logistics problem the 1922 team solved: remote access, weather risk, and instruments that only get one chance to work. The difference is scale and stakes, not the underlying constraint. A travel piece might reduce this to "the eclipse that proved Einstein right" as a headline aside; this page names the expedition, the funding, the personnel and the result so the claim can be checked rather than taken on faith.
Frequently asked questions
Is Wallal inside the 2028 eclipse path?
Not necessarily. Wallal Downs sits at roughly 19.8 degrees south, 120.6 degrees east, south of the sample coordinates this site publishes for the 2028 Kimberley corridor. Check the exact 2028 path at that coordinate on the interactive map rather than assuming continuity between the two events.
Was this the first test of Einstein's light-bending prediction?
No. Arthur Eddington's 1919 expeditions to Príncipe and Sobral were first. Wallal in 1922 was a significant follow-up, run with different instruments and a different observing team, that added independent evidence for the same prediction.
This page follows the site's correction policy: factual errors are fixed and the update date above changes so the fix is visible, rather than silently edited.
Continue exploring
Compare this with Sydney's 1857 total eclipse and Dunedin's 1163 total eclipse, check the Kimberley region guide for the modern coastal corridor, read how eclipse geometry is calculated, or verify any coordinate on the interactive map.