China <span>However, early forms of the toothbrush have been in existence since 3000 BC. Ancient civilizations used a "chew stick," which was a thin twig with a frayed end. These 'chew sticks' were rubbed against the teeth. The bristle toothbrush, similar to the type used today, was not invented until 1498 in China.
Hope this helps</span>
<span>Above all, the great river systems of China, the Yellow River to the north and the Yangtze to the south, which have given Chinese civilization its distinctive character. Thecivilization of ancient China first developed in the Yellow River region of northern China, in the 3rd and 2nd millennia BC.</span>
Answer:
The American Civil War (also known by other names) was a civil war in the United States from 1861 to 1865, fought between the northern United States (loyal to the Union) and the southern United States (that had seceded from the Union and formed the Confederacy). The civil war began primarily as a result of the long-standing controversy over the enslavement of black people. War broke out in April 1861 when secessionist forces attacked Fort Sumter in South Carolina shortly after Abraham
Explanation:
Demographic shifts across the U.S. The Great Migration, sometimes known as the Great Northward Migration or the Black Migration, was the movement of 6 million African Americans out of the rural Southern United States to the urban Northeast, Midwest and West that occurred between 1916 and 1970.