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Demi-cannons were capable of firing these heavy metal balls with such force, that they could penetrate more than a meter of solid oak, from a distance of 90 m (300 ft), and could dismast even the largest ships at close range. [115] Full cannons fired a 42 lb (19 kg) shot, but were discontinued by the 18th century, as they were too unwieldy.
The first north-south line, Eastern Ohio Meridian, was to be the western boundary of Pennsylvania, sometimes called Ellicott‘s Line [2] after Andrew Ellicott, who had been in charge of surveying it, and the first east-west line (called the Geographer’s Line or Base Line) was to begin where the Pennsylvania boundary touched the north bank of ...
The first map of Ohio to show all the actual surveys within the inhabited part of the state. A rare and early large map of Ohio. County boundaries tinted in color. Townships clearly shown. An extensive key is included detailing land ownership history and some land use. Northwest portion of state not surveyed but shows swamplands and plains.
Early 15th-century Flemish giant cannon Dulle Griet at Ghent (caliber of 660 mm). This list contains all types of cannon through the ages listed in decreasing caliber size. For the purpose of this list, the development of large-calibre artillery can be divided into three periods, based on the kind of projectiles used, due to their dissimilar characteristics, and being practically ...
This is a list of National Historic Landmarks in Ohio and other landmarks of equivalent landmark status in the state. The United States' National Historic Landmark (NHL) program is operated under the auspices of the National Park Service , and recognizes structures, districts, objects, and similar resources according to a list of criteria of ...
Fort Recovery had been garrisoned since spring 1794 by a 250-man detachment of Gen. Anthony Wayne's Legion of the United States. On June 30, 1794, a United States supply column left Fort Recovery for Fort Greenville, under the command of Major William McMahon and escorted by ninety riflemen under Captain Asa Hartshome and fifty dragoons under Lieutenant Edmund Taylor.
Larger cannon were used in greater numbers during the Fall of Constantinople: Sultan Mehmet II used 68 Hungarian-made cannons, the largest of which was 26 ft (7.9 m) long and weighed 20 t (20 long tons; 22 short tons); this fired a 1,200 lb (540 kg) cannonball, and required an operating crew of 200 men, [8] as well as 70 oxen and 10,000 men ...
This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Huron County, Ohio, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in an online map. [1]