Convert ancient dates into Historical Calendar dates (aka Holocene Calendar or Human Era) or any other year numbering system.

Latest Version

Version
9.0.1
Update
December 30, 2023
Size
78.15KiB
Developer
oldera.org
Category
Users
58
Rating
5 ★
Manifest Version
3
Web Store Status
Languages Support
English (United States)
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Permissions
Storage
ActiveTab
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Ancient Date Converter Extension

This extension converts ancient dates into Historical Calendar dates on Wikipedia and other websites. The first year of the Historical Calendar is 10,000 BC. Year 2024 AD is year 1,2024 in Historical Calendar, but in most cases you can omit the first digit.

This means you can use Historical Calendar only when dealing with ancient history. Your day-to-day life is not affected, thus no official calendar reform is needed for Historical Calendar to be practical.

Alternatively, you can use any other timeline by picking the starting point yourself.

The extension can potentially detect and convert all BC dates, even those that lack “BC” label. If some date is not being detected you can fix that using tools provided by the extension.

It can also detect and convert dates of the Common era, but only those that have “AD” or “CE” label next to them.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "Ancient Date Converter", "version": "9.0.1", "manifest_version": 3, "description": "Convert ancient dates into Historical Calendar dates (aka Holocene Calendar or Human Era) or any other year numbering system.", "content_scripts": [ { "matches": [ "" ], "js": [ "globals.js", "constants.js", "patternsInHtml.js", "patternsInText.js", "helpers.js", "editor/helpers.js", "markupPatternProcessors.js", "location.js", "translation.js", "automaticTranslation.js", "adPatternProcessors.js", "patternProcessors.js", "pageChecker.js", "summaryManager.js", "editor/history.js", "editor/editorContent.js", "editor/wikitextEditor.js", "editor/selectors.js", "editor/committers.js", "pageInfoPopup.js", "content.js" ], "css": [ "styles.css" ], "run_at": "document_end" } ], "background": { "service_worker": "background.js" }, "action": { "default_icon": "images/icon16.png", "default_popup": "popup.html" }, "permissions":[ "storage", "activeTab" ], "host_permissions": [ "" ], "icons": { "16": "images/icon16.png", "32": "images/icon32.png", "48": "images/icon48.png", "128": "images/icon128.png" }, "commands": { "selectRange": { "suggested_key": { "default": "Ctrl+Z", "mac": "MacCtrl+Z" }, "description": "select range" }, "deselectRange": { "suggested_key": { "default": "Alt+Z", "mac": "Alt+Z" }, "description": "deselect range" }, "deleteInRange": { "suggested_key": { "default": "Alt+D", "mac": "Alt+D" }, "description": "delete in range" }, "roundYearsInRange": { "suggested_key": { "default": "Ctrl+Q", "mac": "Ctrl+Q" }, "description": "round years in range" }, "toggleOnOff": { "description": "turn on/off" }, "toggleEditingMode": { "description": "toggle editing mode" }, "goBackInHistory": { "description": "go back in history" }, "goForwardInHistory": { "description": "go forward in history" }, "findRoundYears": { "description": "find round years" }, "findDecades": { "description": "find decades" }, "findCenturiesMillennia": { "description": "find centuries/millennia" }, "findBCs": { "description": "find BCs" }, "markWordCentury": { "description": "mark word 'century'" }, "markWordMillennium": { "description": "mark word 'millennium'" }, "commitYears": { "description": "commit years" }, "commitDecades": { "description": "commit decades" }, "commitCenturies": { "description": "commit centuries" }, "commitMillennia": { "description": "commit millennia" }, "commitRemovals": { "description": "commit removals" }, "find1DigitNumbers":{ "description": "find 1 digit numbers" }, "find2DigitNumbers":{ "description": "find 2 digit numbers" }, "find3DigitNumbers":{ "description": "find 3 digit numbers" }, "find4DigitNumbers":{ "description": "find 4 digit numbers" }, "toggleTestingModeFromShortcut":{ "description": "toggle test mode" }, "openEditor":{ "description":"open editor" }, "clearCache":{ "description":"clear cache" }, "startWikitextEditing":{ "description":"open wikitext editor" }, "togglePageInfo":{ "description":"toggle page info popup" }, "shortenDecadesInRange":{ "description":"shortedn decades in range" }, "copyToClipboard":{ "description":"copy to clipboard" }, "openDataPage":{ "description":"open data page" }, "saveDataPage":{ "description":"save data page" } }}
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How to download and manually install Ancient Date Converter extension for Chrome

Looking for a way to install Ancient Date Converter extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Ancient Date Converter extensions manually, this article outlines two simple methods to effortlessly install Ancient Date Converter extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Ancient Date Converter extension and manually install through Drag &Drop

If you ever need to manually install a Ancient Date Converter extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Ancient Date Converter Extension by clicking the "Download CRX" button on the website.

Look for the Ancient Date Converter extension you wish to install. Go to the website and download the Ancient Date Converter extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Ancient Date Converter extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Ancient Date Converter extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Ancient Date Converter extension for Chrome and install in Developer Mode

This is another method to install Ancient Date Converter extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Ancient Date Converter extension file

Select and download the Ancient Date Converter extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Ancient Date Converter extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Ancient Date Converter extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Ancient Date Converter extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Ancient Date Converter extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Jadi C (ID: 0000002703a976f7) Voted 5 ★ - Updated 06/02/2023 I love this but can you please add that it changes "AD" and "CE" also, please. I want to use it as a holocene calander. Adding 10000 years to a date. For exemple "250 AD" will become "10250 HE" Can you please do that, I think it won't be that mutch work. Thank you so much in advance.