From Latin fictus, the term milestone It has different uses. It used to be used as a synonym for fixed, constant or unalterable , and also to refer to that righ now , although these meanings fell into disuse. Other meanings that are no longer common are linked to the black horse that has no spots and to the person bothers when claiming something.
Milestone, currently, is used to name the permanent signal which allows you to indicate a address , a geographical situation or a certain distance. It is usually sculptures or signals of various materials . He Milestone Three Borders , for example, is an obelisk located where rivers converge Iguazu and Parana that marks the limit between Argentina , Brazil and Paraguay . He Milestone to the Tropic of Capricorn On the other hand, it is a large sculpture that is located almost 30 kilometers from the town of Antofagasta , in Chilean territory.
The term is also used to mention a type of traffic signs that serve to indicate the distance that there is between the beginning and end of a road so that they guide travelers. This kind of signaling is called kilometer milestone and it is divided into two groups: cairn (It is a stone that is placed at the beginning and end of a road or railroad, which also serves to delimit territories on farms) or kilometer milestone proper (it is a metal sign that usually bears the name of the road and the section that runs and is placed at the beginning of a road). It is worth mentioning that when the milestone is indicated by multiple numbers of 10 it is called myriatric milestone and if it is marked in miles, miliary milestone.
In U.S , is known as national historical landmark to a construction, place or thing that the American authorities recognize for its value historical. When deciding on such valuation, those places that have been really decisive for national history are contemplated - both if important events have occurred there, as if some relevant person has lived nationally -, the spaces where the ideals that have come to life they forged the Nation or that symbolize the lifestyle of the citizens of the whole country and those archaeological sites that contain valuable information that can serve to understand the history of the country.
A milestone is, on the other hand, an action, an event or a subject that is essential in a certain context , that is, it marks a before and after. For example: "Del Potro's victory over Federer is a milestone in the history of Argentine tennis", “The Woodstock festival was a milestone of American rock that marked an entire generation”.
In this same meaning of the term the developmental milestones of the human baby, where the process of psychomotor growth, from when a child is born until it reaches childhood. Some of the most important milestones of the evolutionary stage of the baby are: fixation of the look, control of the head, muscular strength, use of the hands and fingers and use of its sound organs to start communicating.
A small nail that has no head and a entertainment in which you have to nail this object to throw yew, are other meanings of the word milestone.
Finally, the term can also refer to a beaconing element (to get the attention of citizens and avoid accidents in a work, for example), called the landmark of vertex. It is formed by two opposite isosceles triangles and contained in a semi-cylindrical device where, the two opposite vertices indicate the divergent directions in which it can be circulated.