Problem: Multiracial American:

In Virginia prior to 1920, for example, a person was legally white if having seven-eights or more white ancestry. The one-drop rule originated in some Southern United States in the late 19th century, likely in response to whites' attempt to maintain white supremacy and limit black political power following the Democrats' regaining control of state legislatures in the late 1870s. The first year in which the U.S. Census dropped the mulatto category was 1920; that year enumerators were instructed to classify people in a binary way as white or black. This was a result of the Southern-dominated Congress convincing the Census Bureau to change its rules.

Who is responsible for the Census Bureau discarding the mulatto category?
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A: Southern-dominated Congress


Problem: The largest shareholder on the Arsenal board is American sports tycoon Stan Kroenke. Kroenke first launched a bid for the club in April 2007, and faced competition for shares from Red and White Securities, which acquired its first shares off David Dein in August 2007. Red & White Securities was co-owned by Russian billionaire Alisher Usmanov and Iranian London-based financier Farhad Moshiri, though Usmanov bought Moshiri's stake in 2016. Kroenke came close to the 30% takeover threshold in November 2009, when he increased his holding to 18,594 shares (29.9%). In April 2011, Kroenke achieved a full takeover by purchasing the shareholdings of Nina Bracewell-Smith and Danny Fiszman, taking his shareholding to 62.89%. As of June 2015, Kroenke owns 41,698 shares (67.02%) and Red & White Securities own 18,695 shares (30.04%). Ivan Gazidis has been the club's Chief Executive since 2009.
Who is Kroenke's chief competitor for Arsenal stock?
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Answer: Red & White Securities


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Appalachians are characterized by a wealth of large, beautiful deciduous broadleaf (hardwood) trees. Their occurrences are best summarized and described in E. Lucy Braun's 1950 classic, Deciduous Forests of Eastern North America (Macmillan, New York). The most diverse and richest forests are the mixed mesophytic or medium moisture types, which are largely confined to rich, moist montane soils of the southern and central Appalachians, particularly in the Cumberland and Allegheny Mountains, but also thrive in the southern Appalachian coves. Characteristic canopy species are white basswood (Tilia heterophylla), yellow buckeye (Aesculus octandra), sugar maple (Acer saccharum), American beech (Fagus grandifolia), tuliptree (Liriodendron tulipifera), white ash (Fraxinus americana ) and yellow birch (Betula alleganiensis). Other common trees are red maple (Acer rubrum), shagbark and bitternut hickories (Carya ovata and C. cordiformis) and black or sweet birch (Betula lenta ). Small understory trees and shrubs include flowering dogwood (Cornus florida), hophornbeam (Ostrya virginiana), witch-hazel (Hamamelis virginiana) and spicebush (Lindera benzoin). There are also hundreds of perennial and annual herbs, among them such herbal and medicinal plants as American ginseng (Panax quinquefolius), goldenseal (Hydrastis canadensis), bloodroot (Sanguinaria canadensis) and black cohosh (Cimicifuga racemosa).
What type of trees are lacking in the appalachian?
A: unanswerable


Context and question: The "Bleacher Bums" is a name given to fans, many of whom spend much of the day heckling, who sit in the bleacher section at Wrigley Field. Initially, the group was called "bums" because it referred to a group of fans who were at most games, and since those games were all day games, it was assumed they did not work. Many of those fans were, and are still, students at Chicago area colleges, such as DePaul University, Loyola, Northwestern University, and Illinois-Chicago. A Broadway play, starring Joe Mantegna, Dennis Farina, Dennis Franz, and James Belushi ran for years and was based on a group of Cub fans who frequented the club's games. The group was started in 1967 by dedicated fans Ron Grousl, Tom Nall and "mad bugler" Mike Murphy, who was a sports radio host during mid days on Chicago-based WSCR AM 670 "The Score". Murphy alleges that Grousl started the Wrigley tradition of throwing back opposing teams' home run balls. The current group is headed by Derek Schaul (Derek the Five Dollar Kid). Prior to the 2006 season, they were updated, with new shops and private bar (The Batter's Eye) being added, and Bud Light bought naming rights to the bleacher section, dubbing them the Bud Light Bleachers. Bleachers at Wrigley are general admission, except during the playoffs. The bleachers have been referred to as the "World's Largest Beer Garden." A popular T-shirt (sold inside the park and licensed by the club) which says "Wrigley Bleachers" on the front and the phrase "Shut Up and Drink Your Beer" on the reverse fuels this stereotype.
Who heads the current group?
Answer: Derek Schaul


Question: Turner Classic Movies also airs regularly scheduled weekly film blocks, which are periodically preempted for special themed month-long or seasonal scheduling events, such as the "31 Days of Oscar" film series in the month preceding the Academy Awards and the month-long "Summer Under the Stars" in August; all featured programming has their own distinctive feature presentation bumper for the particular scheduled presentation. The Essentials, currently hosted by Osborne and Sally Field as of 2015[update], is a weekly film showcase airing on Saturday evenings (with a replay on the following Sunday at 6:00 p.m. Eastern Time), which spotlights a different movie and contains a special introduction and post-movie discussion.
Is there an answer to this question: When does 31 Days of Oscar occur?

Answer: month preceding the Academy Awards


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Islamic Prophet Muhammad carried out a siege against the Banu Qaynuqa tribe known as the Invasion of Banu Qaynuqa in February 624  Muhammad ordered his followers to attack the Banu Qaynuqa Jews for allegedly breaking the treaty known as the Constitution of Medina by pinning the clothes of a Muslim woman, which led to her being stripped naked As a result, a Muslim killed a Jew in retaliation, and the Jews in turn killed the Muslim man. This escalated to a chain of revenge killings, and enmity grew between Muslims and the Banu Qaynuqa, leading to the siege of their fortress.:122 The tribe eventually surrendered to Muhammad, who initially wanted to kill the members of Banu Qaynuqa but ultimately yielded to Abdullah ibn Ubayy's insistence and agreed to expel the Qaynuqa.
Who's insistence led the Prophet Muhammad to expel the Banu Qaynuqa Jews instead of kill them?
A:
Abdullah ibn Ubayy