Comprising a total area of 637.4 square miles (1,651 km2),[8] Houston is the eighth most expansive city in the United States (including consolidated city-counties). It is the largest city in the United States by total area, whose government is not consolidated with that of a county, parish or borough. Though primarily in Harris County, small portions of the city extend into Fort Bend and Montgomery counties, bordering other principal communities of Greater Houston such as Sugar Land and The Woodlands.
The city of Houston was founded by land speculators on August 30, 1836,[9] at the confluence of Buffalo Bayou and White Oak Bayou (a point now known as Allen's Landing)[10] and incorporated as a city on June 5, 1837.[11] The city is named after former General Sam Houston, who was president of the Republic of Texas and had won Texas' independence from Mexico at the Battle of San Jacinto 25 miles (40 km) east of Allen's Landing.[11] After briefly serving as the capital of the Texas Republic in the late 1830s, Houston grew steadily into a regional trading center for the remainder of the 19th century.[12]
Secular use of "Sabbath" for "rest day", while it usually refers to the same period of time (Sunday) as the majority Christian use of "Sabbath", is often stated in North America to refer to different purposes for the rest day than those of Christendom. In McGowan v. Maryland (1961), the Supreme Court of the United States held that contemporary Maryland blue laws (typically, Sunday rest laws) were intended to promote the secular values of "health, safety, recreation, and general well-being" through a common day of rest, and that this day coinciding with majority Christian Sabbath neither reduces its effectiveness for secular purposes nor prevents adherents of other religions from observing their own holy days. Massachusetts, uncharacteristically, does not specify the weekday in its "Day of Rest" statute, providing only that one day off from work is required every week; an unspecified weekly day off is a very widespread business production cycle. The Supreme Court of Canada, in R. v. Big M Drug Mart Ltd. (1985) and R. v. Edwards Books and Art Ltd. (1986), found some blue laws invalid for having no legitimate secular purpose, but others valid because they had no religious purpose.
Houston has excessive ozone levels and is routinely ranked among the most ozone-polluted cities in the United States.[87] Ground-level ozone, or smog, is Houston's predominant air pollution problem, with the American Lung Association rating the metropolitan area's ozone level twelfth on the "Most Polluted Cities by Ozone" in 2017, after major cities such as Los Angeles, Phoenix, New York City and Denver.[88] The industries located along the ship channel are a major cause of the city's air pollution.[89] The rankings are in terms of peak-based standards, focusing strictly on the worst days of the year; the average ozone levels in Houston are lower than what is seen in most other areas of the country, as dominant winds ensure clean, marine air from the Gulf.[90]
At the 2000 Census, the racial makeup of the city in was 49.3% White, 25.3% Black or African American, 5.3% Asian, 0.7% American Indian, 0.1% Pacific Islander, 16.5% from some other race, and 3.1% from two or more races. In addition, Hispanics made up 37.4% of Houston's population in 2000, while non-Hispanic whites made up 30.8%.[130] The proportion of non-Hispanic whites in Houston has decreased significantly since 1970, when it was 62.4%.[27]
The Allen brothers—Augustus Chapman and John Kirby—explored town sites on Buffalo Bayou and Galveston Bay. According to historian David McComb, "[T]he brothers, on August 26, 1836, bought from Elizabeth E. Parrott, wife of T.F.L. Parrott and widow of John Austin, the south half of the lower league [2,214-acre (896 ha) tract] granted to her by her late husband. They paid $5,000 total, but only $1,000 of this in cash; notes made up the remainder."[18] Saturday worship service
