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Jeff Wallenfeldt
Jeff Wallenfeldt
Contributor
BIOGRAPHY

Jeff Wallenfeldt, manager of Geography and History, worked as an editor at Encyclopaedia Britannica from 1992 to 2024. Previously he wrote rock criticism for Cleveland’s Scene magazine, worked for study-abroad programs in England, and was an editor at CineBooks, publisher of The Motion Picture Guide.

 

 

 

Primary Contributions (200)
Map of the United States showing the Mississippi River and its major tributaries flowing south from Minnesota to the Gulf of Mexico. A shaded area marks the Mississippi River basin, and New Orleans is labeled near the river's mouth.
Mississippi River
Mississippi River, the longest river of North America, draining with its major tributaries an area of approximately 1.2 million square miles (3.1 million square km), or about one-eighth of the entire continent. The Mississippi River lies entirely within the United States. Rising in Lake Itasca in

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Mississippi
Stefan Löfven
assassination of Abraham Lincoln
Elizabeth Warren
Carlos Santana
Mulatto
Marc Maron
Eric Garcetti
Mike Johnson
Steve Scalise
Hank Williams
Juan GuaidĂł
Ratko Mladić
Alberto FernĂĄndez
Jacinda Ardern
Coldplay
Texas Revolution
Sanna Marin
Los Angeles Riots of 1992
Bill Hicks
Rishi Sunak
Billy Bragg
Texas Tower shooting of 1966
IvĂĄn Duque
Dilma Rousseff
assassination of Martin Luther King, Jr.
Jackson Browne
6 Interesting Facts About Fidel Castro
Scott Morrison
MicheĂĄl Martin
Christopher Guest
Salem witch trials
Rust Belt
Selma March
Robert Johnson
Kyriakos Mitsotakis
Kevin McCarthy
Michael D. Higgins
Times Square
Jair Bolsonaro
Amy Winehouse
Leo Varadkar
Woody Guthrie
Barack Obama
assassination of John F. Kennedy
Silent Generation
Ringling Bros. and Barnum & Bailey Circus
Burr-Hamilton duel
Boston Massacre
Gustavo Petro
DACA
Elia Kazan
Brazil: 10 Claims to Fame
The World’s Highest Mountains by Continent
7 Massachusetts Bay Colonists to Know
Alexis Tsipras
Miguel DĂ­az-Canel
Javier Milei
Rock and Roll Hall of Fame and Museum
Seinfeld
the Troubles
Bob Rafelson
Wilmington coup and massacre
9 American Political Scandals
Jack White
Theresa May
Jonas Brothers
Stanley Kubrick
Robert Gould Shaw
Mateusz Morawiecki
Brexit
Harry Smith
Frederik X
Seymour Hersh
Mauricio Macri
Jacques Santer
Prescott S. Bush
Luciano Benetton
Juan Manuel Santos
Kent State shooting
Justin Trudeau
Colin MacInnes
Donald Tusk
Beata SzydƂo
Renato Ruggiero
Humza Yousaf
Ohio
Anthony Albanese
Magdalena Andersson
John Lewis
Pony Express
Natalie du Toit: A Pioneering Disabled Swimmer
Robert Klein
Hristo Stoichkov
British Union of Fascists
Kennedy family tree
Bill English
Ulf Kristersson
Paul Hornung
Patrick Mahomes
2022 Nobel Peace Prize winners
Helle Thorning-Schmidt
James Wolfensohn
There’s a Riot Goin’ On: Riots in U.S. History (Part Two)
There’s a Riot Goin’ On: Riots in U.S. History (Part One)
Yuri Milner
Danilo Medina
Rick Mercer
Dina Boluarte
salutary neglect
Luis Arce
John Sayles
Arthur Penn
John Brennan
José Ramírez
Chris Hipkins
Sauli Niinistö
“Swinging London” Experiences Jimi Hendrix
What Did Cleopatra Look Like?
The 6 Nations of the Iroquois Confederacy
Liz Truss
Henrique Capriles
Horacio Cartes
How the Border Between the United States and Mexico Was Established
Trooping the Colour
How Many of the Signers of the U.S. Constitution Were Enslavers?
5 Things You Don’t Know About Jimmy Carter
When Dylan “Went Electric”
Why Do Jeans Have That Tiny Pocket?
How Many People Signed the U.S. Constitution?
Did the Vikings Discover America?
Why Is Pride Month Celebrated in June?
Did George Washington Really Say, “I Can’t Tell a Lie”?
Have Any U.S. Presidents Decided Not to Run For a Second Term?
Why Is Black History Month Celebrated in February?
Was Abraham Lincoln a Wrestler?
Who Was the First Woman to Run for President of the United States?
What Is the Origin of the Term “Jim Crow”?
Attendees of Martin Luther King, Jr.’s Funeral
Acts of Union: Uniting the United Kingdom
Why Do Cats Sleep So Much?
What Is the Difference Between South America and Latin America?
Where Does the Name Europe Come From?
How the Dred Scott Decision Affected the U.S. Election of 1860
The Canadian Football League: 10 Claims to Fame
10 Fascinating Facts About the First Americans
26 Decade-Defining Events in U.S. History
Exploring 10 Types of Basketball Movies
Behind the Scenes: 12 Real-Life Characters of Texas Rising
11 or 12 Things Remembered Well About the Chelsea Hotel
7 Ways Hosting the Olympics Impacts a City
10 Great Sports Rivalries
10 Things You Need to Know About the Hamilton-Burr Duel, According to Hamilton’s Burr
10 Angry Young Men
“O Captain! My Captain!”
U.K. Votes on “Brexit” from EU
How Texas Rose
150th Anniversary: Lee Surrenders to Grant
When the “Hannibal of the Andes” Liberated Chile
American Red Cross Month 2016
“Thisclose” to Peace in Colombia
50th Anniversary of Texas Tower Shooting
The “Howl” Heard Round the World
The Group of Seven Remembered
The 50th Anniversary of the Watts Riots of 1965
Barack Obama’s Presidential Legacy
the Green Book
Nowa Huta
Becoming Dylan: Bob Dylan’s Rise to Fame in Pictures
Sioux: At a Glance
Fingal’s Cave
Center for Civil Liberties
The Osage Nation Murders: The Story Behind Killers of the Flower Moon
Martin Luther King, Jr. National Memorial
Martin Luther King, Jr., 1929–68
Brooklyn
Village Voice
the Jayhawks
surf music
the Mekons
Return to normalcy
Angel Island Immigration Station
Scanian War
Michael Phelps: Eight-Gold-Medal Man (with a Little Help from His Friends)
The Argentine Men’s Basketball Team: Gold for the Golden Generation
Birgit Fischer: Superlative Olympian