Depends on what period: for the later, "high" Middle Ages (11th-13th centuries), 300-400 million; a few centuries earlier, not much over 200m. .
Australia's population increased in the 19th century because of the discovery of gold.
The cost of living continue to rise from previous decades and centuries because as technology improves, consumer goods are becoming more expensive. For instance, in the 20th century, the Cost of Living increased by 100 percent over previous centuries.
At the end of the 20th century, approximately 6 billion humans lived on Earth. This milestone was reached in the late 1990s, marking a significant increase in global population compared to earlier centuries.
There was an increase in the demand for slaves in the early 19th century because of the increased population and farming industry.
increase in population
13 centuries.
The form century's is the singular possessive form of the noun century. The plural form of the noun century is centuries. The plural possessive form is centuries'.
Immigration from Europe and East Asia spurred the growth of population in the US in the 19th century. Also, in the antebellum days, the slave population also increased.
The development of a merchant class.
the auto industry was booming
the love that our momys & daddys gave us..