What happened in Santa Fe on August 18, 1846?

On August 18, 1846, in the early period of the Mexican American War, an American army general, Stephen Watts Kearny , took Santa Fe and raised the American flag over the Plaza. Two years later, Mexico signed the Treaty of Guadalupe Hidalgo, ceding New Mexico and California to the United States.

Explanation:

a phrase from a poem by ralph waldo emerson about the battle of lexington and concord. emerson's words read, “here once the embattled farmers stood / and fired the shot heard round the world.”