Alphabetical Index » M
Below is an alphabetical list of entries currently available on Ohio History Central. If you wish to read entries that start with a different letter, please click on the appropriate letter. The lists under each include entries about Ohio's natural history, prehistory, and history. All people are listed by their surname. More entries are being added on a continual basis, so please check back regularly.
- M & R Dietetic Laboratories
- M.F. Christensen and Son Company
- Macedonia Missionary Baptist Church
- Macedonian Ohioans
- Macon
- Madison County
- Madison, James
- Madison, Ohio
- Magee, Elizabeth
- Mahan, Asa
- Mahoning County
- Maize
- Major Groups of Rocks
- Malone College
- Mammal Fossils
- Manchester, Ohio
- Mandatory Safety Belt Usage Law
- Manhattan Project
- Manifest Destiny
- Mann, Horace
- Mansfield Guards
- Mansfield, Ohio
- Manson, Marilyn
- Map Turtle
- Marcasite (Iron Sulfide)
- Marietta & Cincinnati Railroad
- Marietta College
- Marietta Earthworks
- Marietta, Ohio
- Marijin Spolek
- Marion County
- Marion Steam Shovel Company
- Marion Technical College
- Marion, Ohio
- Marotta, Sr., Vincent
- Marsupial
- Martinek, Joseph
- Mary Campbell Cave
- Marysville, Ohio
- Marzetti, Teresa
- Massie's Station
- Massie, Nathaniel
- Massive
- Mastodon and Mammoth Fossils
- Mather, William W.
- Matthews, Eva L.
- Matthews, Sister Eva
- Matthews, Stanley
- Mauchly, John
- Maumee River
- Maumee Road Lands
- Maxwell's Code
- May Day Strike of 1886
- McArthur, Duncan
- McArthur, Ohio
- McBride, John
- McCarthy, Joseph R.
- McClain, William
- McClellan, George B.
- McClelland, Helen G.
- McConnelsville, Ohio
- McCook Field
- McCook, Alexander
- McCormick, Cyrus
- McCormick, Elizabeth A.
- McCulloch v. Maryland
- McDowell, Irvin
- McElroy, Neil H.
- McGuffey's Reader
- McGuffey, William H.
- McIntyre, Natalie
- McKendree, William
- McKinley, Jr., William
- McKinley National Memorial
- McKinley Street
- McKinley Tariff
- McLean, John
- McLean, John R.
- McMicken School of Drawing and Design
- McMicken University
- McPherson, James B.
- McQuerry, George W.
- McVicker, Joseph
- Me-sa-sa
- Mead Corporation
- Meadow Vole
- MeadWestvaco
- Meatpacking
- Mechanics Associations
- Medary, Samuel
- Medical College of Ohio
- Medicine Before the Civil War
- Medicine Men
- Medill, William
- Medina County
- Medina, Ohio
- Megafauna
- Meigs County
- Meigs, Jr, Return J.
- Melanterite (Hydrous Iron Sulfate)
- Memorial Tournament
- Menches Gourmet Burgers
- Menches, Frank
- Menches, Robert
- Mendenhall, Thomas C.
- Mennonite Church
- Mentor
- Mentor, Ohio
- Mercer County
- Merrick, Myra K.
- Mesozoic Era
- Metal Arrowheads
- Metamorphic Rock
- Metamorphosis
- Methodist Church
- Methodist Episcopal Church
- Methodist Theological School in Ohio
- Metzenbaum, Howard M.
- Mexican War
- Miami and Erie Canal
- Miami Conservancy District
- Miami County
- Miami Exporting Company
- Miami Indians
- Miami Purchase
- Miami University
- Miami Valley Silverbacks
- Miamisburg Mound
- Miamisburg, Ohio, Train Derailment
- Michigan Survey
- Michikinikwa
- Microencapsulation
- Microfiche
- Middle Woodland Period
- Middletown, Ohio (Perry County)
- Midgley, Jr., Thomas
- Migration
- Milacron Incorporated
- Millcroft
- Miller, Dayton C.
- Miller, Thomas
- Miller, Wells W.
- Miller, William
- Millerites
- Millersburg, Ohio
- Millipede Fossils
- Mills Brothers
- Mills, Victor
- Mills, William C.
- Mineral Collecting in Ohio
- Mineral Resources
- Mineral Springs Health Resort
- Minerals of Ohio
- Mingo Indians
- Mississippian Period
- Missouri Compromise
- Mitchel, Ormsby M.
- Mitchell, Sophia
- Mock, Geraldine F.
- Mock, Jerrie
- Model T
- Modell, Arthur B.
- Moerlein, Christian
- Mohs Hardness Scale
- Mollusk Fossils
- Monarch Butterfly
- Monongahela Culture
- Monopoly
- Monroe County
- Montenegrin Ohioans
- Montgomery County
- Montgomery Guards
- Montgomery Pike
- Montgomery, Betty D.
- Montgomery, Ohio
- Moonville, Ohio
- Moorehead, Warren K.
- Moraine
- Moravian Church
- Moravian Grant
- Morgan County
- Morgan's Raid
- Morgan's Raiders
- Morgan, Arthur E.
- Morgan, Garrett A.
- Morgan, John H.
- Morgan, Marabel
- Morgan, Richard G.
- Mormon Church
- Morrill Act
- Morrison, Toni
- Morrow County
- Morrow, Jeremiah
- Mort, Paul R.
- Moses, Phoebe A.
- Mosquito
- Mother's Pension Law
- Motion Picture Projector
- Motts Military Museum
- Moulton, Lydia
- Moulton, William
- Mound City Group
- Mount Gilead, Ohio
- Mount Sterling, Ohio
- Mount Union College
- Mount Vernon Nazarene College
- Mount Vernon Nazarene University
- Mount Vernon, Ohio
- Movie Theater
- Mozee, Phoebe A.
- Mr. Coffee
- Mt. Healthy, Ohio
- Mt. Pleasant, Ohio
- Muckrakers
- Mudpuppy
- Muirfield Village Golf Club
- Municipal Home Rule
- Munsee Indians
- Musk Ox Fossils
- Muskellunge
- Muskingum Area Technical College
- Muskingum College
- Muskingum County
- Muskingum River
- Muskingum Watershed Conservancy District
- Myers University
- Myers, David N.
