Begun in 1860 to be reminiscent of the United States Capitol in Washington, D.C., the Classical Revival style California State Capitol was completed in 1874. In 1861, the legislative session was moved to the Merchants Exchange Building in San Francisco for one session because of massive flooding in Sacramento. The legislative chambers were first occupied in 1869 while construction continued. From 1862 to 1868, part of the Leland Stanford Mansion was used for the governor's offices during Stanford's tenure as the Governor; and the legislature met in the Sacramento County Courthouse.