1. Winter counts, kept by the Lakota people, mark each year in a Lakota band's history with a picture depicting an important event. For the year 1833, many Lakota winter counts show the same event: stars falling from the night sky.

True. In the winter of 1833, the Leonid meteor shower, visible each November, blazed with extraordinary strength. The falling stars caught the attention of people throughout North America, and many Lakota bands chose the shower as the event to stand for the year. Later in the 1800s, ethnologist Garrick Mallery (1831-1894) identified the pictures as standing for the meteor shower, allowing scholars to match the years of the winter counts with the European calendar.

2. Prior to introduction to European calendar systems, the Native peoples of Alaska used peg calendars, wooden calendars in which a peg was moved forward in a series of holes day by day to mark the passage of time.

False. Russian colonists and missionaries introduced peg calendars to the Native peoples of Alaska so that they could track the holy days of the Russian Orthodox Church. Russian contact with Alaskan cultures began in the 1700s, and settlement of the region, accompanied by cultural exchange, continued until 1867, when the U.S. purchased Alaska from the Russians. Peg calendars remained in use into the 20th century.

3. The Winnebago Native Americans recorded time using calendar sticks, in which notches were cut to signify important events, lunar cycles, years, and other units of distinction and division.

True. The Winnebago Native Americans did use sticks to record the passing of time in this manner. However, the use of calendar sticks was not limited to the Winnebago. Other Native American groups throughout North America used sticks, including the Pima, the Osage, and the Zuni. The markings on sticks and their daily and ceremonial use varied from region to region and people to people.

4. The Hopi calendar divides the year into four sections. Spirits known as katsinas (or kachinas) visit the Hopi people in two of these sections, alternating with the two sections free of the spirits.

False. The Hopi calendar divides the year into two halves, one beginning around the summer solstice (June 20th or 21st) and the other with the winter solstice (December 21st or 22nd). After the winter solstice, katsinam, benevolent spirits, visit the Hopi people, personated by Hopi men in masks and costumes. Following the summer solstice, the katsinam leave the Hopi again.

1. When Pocahontas, daughter of Algonquian chief Powhatan, met King James I in England, he chided her husband, colonist John Rolfe, for having dared to marry a royal.

True. Or at least, he is recorded as doing so in colonist Robert Beverley's 1705 The History and Present State of Virginia, today a major resource in early Virginian and colonial history. Beverley gives a full account of Pocahontas's story (though historians debate its accuracy). According to Beverly, in England,

"Pocahontas had many Honours done her by the Queen . . . she was frequently admitted to wait on her Majesty, and was publickly treated as a Prince's Daughter; she was carried to many Plays, Balls, and other publick Entertainments, and very respectfully receiv'd by all the Ladies about the Court. Upon all which Occasions she behaved her self with so much Decency, and show'd so much Grandure in her Deportment, that she made good the brightest Part of the Character Capt. Smith had given of her. In the mean while she gain'd the good Opinion of every Body, so much that the poor Gentleman her Husband had like to have been call'd to an Account for presuming to marry a Princess Royal without the King's Consent . . ."

2. Queen Lili'uokalani, forced to abdicate her throne in 1893, was the last female royal of the Hawaiian monarchy.

False. Upon coming to the throne in 1891—following the death of her brother, King Kalakaua—Queen Lili'uokalani appointed Victoria Ka'iulani Cleghorn, her half-Scottish half-Hawaiian niece, as Crown Princess of Hawaii. Born in 1875 and educated in the UK, Ka'iulani spent the latter part of her short life advocating for the restoration of her country's independence. She died of illness in 1899, at the age of 23—shortly after the U.S. officially annexed Hawaii. The Hawaiian royal line continues today, but Ka'iulani was the last princess appointed while the monarchy held political power.

3. One female sachem (an Algonquian tribal chief) took part in the bloody 1675-1676 conflict between New England colonists and Native Americans known as King Philip's War.

False. Two female sachems took part in King Philip's War. The most famous is Weetamoo, sachem of the Wampanoag tribe called the Pocassets and sister-in-law of Metacom, sachem of the Pokanoket. Called Philip by the English, Metacom was the Philip of King Philip's War and, with Weetamoo and her tribe, fought against the English. Less famous is Awashonks, female sachem of the Sakonnets. Though she originally sided with Weetamoo and Philip, she later chose to ally her tribe with the English.

4. The marriage of Japanese imperial princess Kazunomiya to the acting ruler of Japan, shogun Tokugawa Iemochi, was a direct reaction to the 1854 Convention of Kanagawa, in which American Commodore Matthew C. Perry intimidated Japan into opening its ports to the U.S.

False. The imperial family objected to the opening of Japan—which had kept its borders largely shut to outsiders for centuries—to the U.S., but the imperial princess' marriage did not take place until several years after the shogun concluded a second treaty, this one with the first U.S. Consul General to Japan, Townsend Harris. The shogunate, essentially a monarchy made up of warrior-rulers, had long held the power of government in Japan, while the traditional monarchy of the imperial family had become largely ceremonial. However, the shogunate's agreeing to open the country to Westerners in the treaties of 1854 and 1858 created a political divide between supporters of the shogun and of the emperor; Kazunomiya's marriage to Iemochi in 1862 was meant to bridge this divide.

1. House Sparrow (Passer domesticus), first introduced by the New York-based American Acclimatization Society in the 1850s, and by others during that decade.

2. Starling (Sturnus vulgari), first introduced by Eugene Schieffelin of the American Acclimatization Society into Central Park in 1877.

3. Rock Pigeon (Columba livia), first introduced to North America in 1606 at Port Royal, Nova Scotia.

4. Kudzu (Pueraria lobata), first introduced on a large scale to America from about 1935 by the Soil Conservation Service and the Civilian Conservation Corps, which planted it extensively in southern states in an effort to control soil erosion.

5. Dandelion (Taraxacum officinale), first introduced by British colonists as a garden green and medicinal herb.

6. Common Carp (Cyprinus carpio), first brought to the U.S. in 1831, but widely introduced by U.S. Fish and Fisheries Commission head Spencer Fullerton Baird soon after 1871, as a food source in the nation's overfished rivers and lakes.

7. Water Hyacinth (Eichhornia crassipes), first introduced into North America in 1884. It now clogs many lakes, ponds, and inland waterways.

8. Gypsy Moth (Lymantria dispar), introduced to Medford, MA, in 1868, by French amateur entomologist Étienne Léopold Trouvelot, in an effort to cross breed them with silk moths in the U.S., which had become susceptible to various diseases.