What was the great coincidence involving Sacajawea and the Shoshone chief Megawatt?

The great coincidence involving Sacajawea and the Shoshone chief Cameahwait (often mistakenly referred to as Megawatt) occurred during the Lewis and Clark Expedition in 1805. Sacajawea, who served as a translator and guide for the expedition, unexpectedly recognized her brother, Cameahwait, when they encountered the Shoshone tribe. This reunion not only highlighted the significance of Sacajawea's role in bridging cultural gaps but also helped the expedition secure essential supplies and support from the Shoshone people.