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Add or Edit Facts

This section references the details of the form for adding or editing facts.

Overview of the form
Overview of the form

To add a new fact, access it from the application's main menu:

Adding a fact
Adding a fact from the main menu

To edit a fact, you must log in to the project with your own account and enable the contributorMode setting, which activates the editing function when viewing facts (the small blue pencil icon to the left of the date).

Editing a fact
The edit icon next to a fact's date

Main Fields

Title
  • Brief name or heading that identifies the fact.
  • Required.
  • We recommend keeping it short (less than 100 characters).
  • Example: "Foundation of Buenos Aires"
Description
  • More detailed explanation of the fact.
  • Required.
  • May include historical context, significance, or consequences of the event.
  • Example: "The city of Buenos Aires was founded by Pedro de Mendoza in 1536, on the coast of the Río de la Plata."
Date

Date on which the fact occurred. A complete date including day, month, and year should always be provided. However, if the data is not exact, you can indicate that only the year, or the year and month should be considered, by setting the precision of the date(s).

If the fact spans over time, you can provide an end date to indicate the period during which it occurred.

Date
  • Date of the fact.
  • Required.
  • Format: dd/mm/yyyy.
  • Validations: Must be a valid date between -10000 and the current year.
  • If the day or month is unknown, only the year or year and month can be used.
  • Example: 02/02/1813
End Date
  • Final date in case the fact has a duration (e.g., a historical period).
  • Optional.
  • If filled in, it must be a valid date equal to or later than the start date.
  • Format: dd/mm/yyyy.
  • Example: 09/02/1817 (end of the Crossing of the Andes by the Liberating Army)
Precision of the Date(s)
  • Level of detail or certainty regarding the date or dates associated with the fact.
  • Required.
  • Allows indicating whether the date has precision at the day, month, or year level.
  • Available options:
    • YYYY-MM-DD: date defined by year, month, and day.
    • YYYY-MM: date defined by year and month.
    • YYYY: date defined by year.
  • Example: YYYY (if the fact occurred in the year 1823 but no more precise record exists)
Coordinates

Used to indicate the location where the fact occurred. There are several tools available to make entering this data easier. You can drag the marker on the map to the desired location, or first navigate to the place and then right-click to set it. Alternatively, you can directly enter the coordinates if they are already known.

You can copy both coordinates from Wikipedia when they are displayed (usually in the top-right corner). Similarly, if you're using a map service like Google Maps, you can right-click on the location to view its coordinates. Clicking on them copies the values to your clipboard. In both cases, if you paste the full coordinate value into the Latitude field, the system will automatically split them into the corresponding fields.

Latitude
  • North-south coordinate of the fact.
  • Required.
  • Accepted formats: Decimal (48.856944) or sexagesimal (48°51′25″ N).
  • Validations: Must be between -90 and 90.
Longitude
  • East-west coordinate of the fact.
  • Required.
  • Accepted formats: Decimal (2.352222) or sexagesimal (2°21′12″ E).
  • Validations: Must be between -180 and 180.
Wikipedia's coordinates
Wikipedia's coordinates
Google Maps coordinates
Google Maps coordinates

Automatic feature: When pasting full coordinates into the Latitude field, the system automatically splits them into both fields.

Categories
  • Thematic classification of the fact (e.g.: History, Culture, Politics, etc.).
  • Required: At least one category must be selected.
  • Use the Ctrl key (Windows) or Cmd key (Mac) to select multiple categories.
Icon
  • Representative image of the fact.
  • Required.
  • Relation: Depends on the selected category.
Image URL
  • Web address of an illustrative image for the fact.
  • Requirement: Optional, but recommended.
  • The image must be free of copyright or in the public domain.
  • Example: https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/La_Plata_Catedral_2.jpg/800px-La_Plata_Catedral_2.jpg

General Validations

Field Required Validation
Title ✅ Yes Not empty, maximum 100 characters
Description ✅ Yes Not empty
Date ✅ Yes Valid date between -10000 and current year
End Date ❌ No Valid date between -10000 and current year
Date Precision ✅ Yes One of the available options
Latitude ✅ Yes Number between -90 and 90
Longitude ✅ Yes Number between -180 and 180
Category(ies) ✅ Yes At least one category selected
Icon ✅ Yes An icon must be selected
Image ❌ No Valid URL

License and Collaborative Use

  • License: All added content is published under the CC0 license, meaning it is released into the public domain.
  • Responsibility: Data may be reviewed, modified, or removed if considered inappropriate or incorrect.
  • Log in: It is recommended to register and log in to collaborate.

Return to Map

Once the form is completed and saved, the user returns to the main map where the fact appears with its location and details.

List of Previously Worked Facts

If other facts have been created or modified, they are displayed in a list that makes it easy to view them on the map, edit again, or copy their identifier (for example, to use as a step in a lesson).

Advanced Options

These options are available under a hidden section (Show advanced options) and are mainly intended for contributors with deeper technical knowledge.

Element Type
  • Defines whether the fact represents a point event, an area (identified by a circle), or a lesson.
  • Required.
  • Options: Point marker, Area or circle, Lesson.
  • Affects how the content is visualized (iconography, labels, details).
  • The default value is Point Marker
Language
  • Indicates the primary language of the fact's content, under which it will be visible.
  • Required.
  • Used to define the language in which the title and description of the fact are written and stored.
  • Example: Spanish, English
Minimum Zoom
  • Zoom level at which the fact begins to appear on the map.
  • Range: 0 to 18 (with 0 being global world view and 18 being highly detailed local view).
  • Useful for showing facts only at certain levels of detail.
  • Example: 5 (visible when viewing the continent)
Maximum Zoom
  • Zoom level at which the fact stops appearing on the map.
  • Range: 0 to 18.
  • Used together with "Minimum Zoom" to control visibility range.
  • Example: 12 (no longer visible when zoomed in too closely to urban detail)
Source or Web Page with More Information (URL)
  • Origin of the data. Bibliographic reference or URL where the information was obtained.
  • Optional but recommended.
  • Helps verify the accuracy of the content and facilitates future reviews.
  • Example: https://www.argentina.gob.ar/historia/fundacion-de-buenos-aires
Aliases or Additional Tags
  • List of keywords related to the fact.
  • Optional.
  • Improves semantic search and filtering within the map.
  • Example: sanmartinian campaign
Multimedia Content
  • List of multimedia files associated with the fact (audio, video, additional images, PDF documents, etc.).
  • Optional.
  • Each file must include:
    • A valid URL.
    • A type (audio, video, document).
    • The language of the content.
Relationships
  • List of other facts, people, or institutions related to this fact.
  • Optional but valuable for the semantic network.
  • Each relationship must include:
    • ID of the related element.
    • Type of relationship (e.g., cause, consequence, successor).
    • Brief title or description of the relationship.
    • Start year of the related fact (if applicable).
    • End year of the related fact (if applicable).

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