Membership |
Shop |
Calendar |
Donate

Visit
- COVID-19 Update
  
  Calendar
  
  History Center Exhibits
  Visit
  
  Alexander Ramsey House
  
  Birch Coulee Battlefield
  
  Charles Lindbergh
  House and Museum
  
  Comstock House
  
  Folsom House
  
  Forest History Center
  
  Fort Ridgely
  
  Harkin Store
  
  Historic Forestville
  
  Historic Fort Snelling
  
  James J. Hill House
  
  Jeffers Petroglyphs
  
  Lac qui Parle Mission
  
  Lower Sioux Agency
  
  Marine Mill
  
  Mill City Museum
  
  Mille Lacs Indian Museum
  and Trading Post
  
  Minnehaha Depot
  
  Minnesota History Center
  
  Gale Family Library
  
  Minnesota State Capitol
  
  Oliver Kelley Farm
  
  Sibley Historic Site
  
  Snake River Fur Post
  
  Split Rock Lighthouse
  
  Traverse des Sioux
  
  W. W. Mayo House
Research
- Overview
  Records & Indexes
  
  Archival Collection Finding Aids
  
  Digital Newspapers
  
  Library and Archives Catalog
  
  Minnesota People Records Search (Birth, Death, etc.)
  
  Search Collections
  
  Gale Family Library
  
  Research Help
  
  Family History Guide
  
  Newspaper Resources
  
  Research Guides by Topic
  
  Research Services
Preservation
- Overview
  Grants
  
  Legacy Grants
  
  Heritage Partnership Program
  
  State Capital Projects Grants-in-Aid
  
  History Help
  
  Local History Services
  
  Preservation Specialists Directory
  
  Preserving History
  
  Building and Site Preservation
  
  Conservation
  
  Minnesota State Archives
  
  State Historical Record Advisory Board
Explore
- Overview
  Multi-Theme
  
  Collections Up Close
  
  History at Home
  
  Minnesota History Magazine
  
  MNHS Press Books
  
  MNopedia
  
  Storied
  
  This Day in Minnesota History
  
  Your Stories
  
  History is Now
  
  Stories of Minnesota's Greatest Generation
  
  Single Theme
  
  Black History, Black Voices
  
  Duluth Lynchings
  
  Forests, Fields and the Falls
  
  Hmong in Minnesota
  
  Ojibwe Material Culture
  
  Renewing What They Gave Us
  
  Stories of LGBTQ Communities in Minnesota
  
  The Seven Council Fires
  
  The U.S.-Dakota War of 1862
  
  Votes for Women
  
  Walter F. Mondale Collection
Schools
- Overview
  Distance Learning Resources
  
  History Day
  
  Northern Lights
  
  Field Trips
  
  Scholarships, Grants, and Subsidies
  
  Supplemental Curriculum Products
  
  Teacher Professional Development
  
  Teaching Native American History and Culture
  
  Online Resources
  
  Inquiry in the Upper Midwest Project
  
  Minnesota Center for Social Studies Education (CSSE)
  
  Teacher Membership
  
  6th Grade MN History Pass
About MNHS
- Who We Are
  
  Mission, Values & Vision
  
  History of MNHS
  
  Leadership
  
  Contact MNHS
  
  Reports
  
  Legacy Amendment
  
  Exhibits To Go!
  
  Media Room
  
  Internships
  
  Fellowships & Residencies
  
  Volunteers
  
  Jobs
Support
- Overview
  Become a Member
  
  Make a Gift
  
  North Star Circle
  
  Planned Giving
  
  Endowment Giving
  
  Corporations and Foundations
  
  Volunteers
  
  History Matters — Take Action

Skip to main content

About
Copyright
Contact

A resource for reliable information about significant people, places, events, and things in Minnesota history.

Search form

More Search Options Fewer Search Options

Search

Advanced search

Topics

African Americans

Agriculture

Architecture

Arts

Business and Industry

Cities and Towns

Crime and Punishment

Education

Environment

Health and Medicine

Immigration

Labor

Native Americans

Politics

Religion and Belief

Science and Technology

Sports and Recreation

Transportation

War and Conflict

Women

Category

Event

Group

Person

Place

Structure

Thing

Era

Before European Contact: Pre-1585

Colonization: 1585-1763

Revolution and a New Nation: 1754-1800

Expansion and Reform: 1792-1861

Civil War and Reconstruction: 1850-1877

Development of an Industrial United States: 1870-1920

Great Depression and World War II: 1920-1945

Post-World War II United States: 1945-1989

The United States in a New Global Age: 1980-Present

Home
Index
Topics

This Day in Minnesota History

July 20, 1858

Creator:

Minnesota Historical Society

Source:

ISBN: 0873514165

Cite
- Minnesota Historical Society. "July 20, 1858." MNopedia, Minnesota Historical Society. http://www.mnopedia.org/event/july-20-1858 (accessed May 3, 2024).
Share
- Facebook
- Twitter
Correct
Print

Polk County is established and named for James K. Polk, who was president when Congress authorized creation of Minnesota Territory.

Cite
- Minnesota Historical Society. "July 20, 1858." MNopedia, Minnesota Historical Society. http://www.mnopedia.org/event/july-20-1858 (accessed May 3, 2024).
Share
- Twitter
- Facebook
Correct
Print

Creative Commons Attribution-ShareAlike 3.0 Unported

First published: July 1, 2015
Last modified: July 20, 2023

Made possible by the Arts and Cultural Heritage Fund through the vote of Minnesotans on November 4, 2008. Administered by the Minnesota Historical Society.
Minnesota Historical Society • 345 W. Kellogg Blvd., St. Paul, MN 55102-1906 (Map) • 651-259-3000 © MNHS.
Send questions or comments to mnopedia [at] mnhs [dot] org. View our Privacy Policy.

Log in