The migration of the Aryans to India was significant, because they expanded a huge empire spanning the whole of the Indian subcontinent and what is now modern-day Afghanistan and Iran. The Indo-Aryan languages are still spoken nowadays in India, Pakistan, Sri Lanka, Bangladesh, Nepal, Fiji and the Maldives. The Aryans also introduced the horse and chariot into the area. They established powerful kingdoms and principalities in the zone.
Answer:
Fort Sumter is an island fortification located in Charleston Harbor, South Carolina most famous for being the site of the first shots of the Civil War (1861-65). Originally constructed in 1829 as a coastal garrison, U.S. Major Robert Anderson occupied the unfinished fort in December 1860 following South Carolina’s secession from the Union, initiating a standoff with the state’s militia forces. When President Abraham Lincoln announced plans to resupply the fort, Confederate General P.G.T. Beauregard bombarded Fort Sumter on April 12, 1861, kicking off the Battle of Fort Sumter. After a 34-hour exchange of artillery fire, Anderson and 86 soldiers surrendered the fort on April 13. Confederate troops then occupied Fort Sumter for nearly four years, resisting several bombardments by Union forces before abandoning the garrison prior to William T. Sherman’s capture of Charleston in February 1865. After the Civil War, Fort Sumter was restored by the U.S. military and manned during the Spanish-American War (1898), World War I (1914-18), and World War II (1939-45). It’s now a National Historic Site.
Explanation:
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Answer:
Internal validity.
Explanation:
Internal validity is the study in which trust relationship is build between treatment and outcome. This relationship is known as <em>cause-and-effect. </em>
In this type research, the studies are based on whether the finding is questionable or not. The research which can overrule the possibility of alternative explanations of our findings is internally valid.
The threats of internal valid study are:
- <u>Natural Improvement </u>
- <u>Maturation</u>
- <u>Historical Events</u>
- <u>Placebo effects</u>
- <u>Nonspecific effects</u>.
So, the correct answer is 'Internal validity'.
