This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

[EX Q]: Interracial relations between Indigenous Americans and African Americans is a part of American history that has been neglected. The earliest record of African and Indigenous American relations in the Americas occurred in April 1502, when the first Africans kidnapped were brought to Hispaniola to serve as slaves. Some escaped, and somewhere inland on Santo Domingo, the first Black Indians were born. In addition, an example of African slaves' escaping from European colonists and being absorbed by Indigenous Americans occurred as far back as 1526. In June of that year, Lucas Vasquez de Ayllon established a Spanish colony near the mouth of the Pee Dee River in what is now eastern South Carolina. The Spanish settlement was named San Miguel de Gualdape. Amongst the settlement were 100 enslaved Africans. In 1526, the first African slaves fled the colony and took refuge with local Indigenous Americans.
[EX A]: What is considered to be neglected in American history?

[EX Q]: Theoretical analyses show that detours that increase flight distance by up to 20% will often be adaptive on aerodynamic grounds - a bird that loads itself with food to cross a long barrier flies less efficiently. However some species show circuitous migratory routes that reflect historical range expansions and are far from optimal in ecological terms. An example is the migration of continental populations of Swainson's thrush Catharus ustulatus, which fly far east across North America before turning south via Florida to reach northern South America; this route is believed to be the consequence of a range expansion that occurred about 10,000 years ago. Detours may also be caused by differential wind conditions, predation risk, or other factors.
[EX A]: What percentage increase in flight distance will often be adaptive?

[EX Q]: Unhappy with this change of policy by the Portuguese government, Napoleon sent an army to invade Portugal. On 17 October 1807, 24,000 French troops under General Junot crossed the Pyrenees with Spanish cooperation and headed towards Portugal to enforce Napoleon's orders. This attack was the first step in what would eventually become the Peninsular War, a six-year struggle that significantly sapped French strength. Throughout the winter of 1808, French agents became increasingly involved in Spanish internal affairs, attempting to incite discord between members of the Spanish royal family. On 16 February 1808, secret French machinations finally materialized when Napoleon announced that he would intervene to mediate between the rival political factions in the country. Marshal Murat led 120,000 troops into Spain and the French arrived in Madrid on 24 March, where wild riots against the occupation erupted just a few weeks later. Napoleon appointed his brother, Joseph Bonaparte, as the new King of Spain in the summer of 1808. The appointment enraged a heavily religious and conservative Spanish population. Resistance to French aggression soon spread throughout the country. The shocking French defeat at the Battle of Bailén in July gave hope to Napoleon's enemies and partly persuaded the French emperor to intervene in person.
[EX A]:
When did Napoleon's invasion of Portugal begin?