Every effort is made to maintain the dates as accurate as possible. Please note that:
All prehistoric and future dates are subject to margins of error. For example, the age of the Earth is 4.54 billion years ± 1%. It is acceptable when different sources use slightly different dates that fall within the same margin of error.
As new discoveries are made, some dates get recalculated or refined, which is normal. For example, before the discovery of radioactive decay, the age of the Earth was calculated in the 19th century to be between 20 and 400 million years old, while modern radiometric dating provides definite evidence of a much older Earth. This timeline attempts to use the most recent dating and the latest evidence.
Some dates depend on the definition of their events. For example, animal domestication can be defined as either taming animals or controlling their breeding. Each definition entails a different date. This timeline usually adopts the broadest definitions and earliest dates. Use the app's external links for additional details. If necessary, edit the events and dates according to your own particular definitions.
The main objective of Timeline Eons is to paint a big historical picture and to cover billions of years of natural and human history. While most other history resources narrowly focus on a single subject and can offer more regional details, Timeline Eons is ideal for displaying major events in a comprehensive context, offering a rounded education and revealing important historical connections.
Because it is impossible to cover every possible historical event while maintaing a practical app, Timeline Eons attempts to cover as many major events as possible, leaving it up to individual users to add events related to their own particular regions and specific interests.
To suggest improvements, please contact us and include specific events that can benefit most other app users.
Timeline Eons does not use the cloud because of the app's size and some cloud reliability issues. This might change in the future. In the meantime, you may use the Export feature to export your events, then use the Import feature to import them into another device.
There are these issues that make public sharing difficult:
Copyright: Some resources, such as images, are subject to copyright laws and therefore cannot be shared publicly.
Accuracy: There are many users that have a subjective take on history, such as those who believe that the pyramids were built by aliens.
Relevance: Most users use timelines to track personal events that do not interest others (family birthdays, local events, etc.).
However, feel free to initiate contact with other timeline users via the comments at the bottom of webpages, then use the app's Export and Import functions to share events with them. If this takes off, it would drive the development of new app and website features.
Developing and maintaining Timeline Eons takes a lot of effort. If you value this app and you want it to continue to be improved, please share it with friends, rate both Timeline Eons and Timeline Eons FREE favorably in the App Store, and "Like" both apps on the same rating screen in the App store.
To rate and "Like" the app, find the app in the App Store, select Rating and Reviews, and simply tap the rating stars and the "Like" button.
Your events are stored on the device that runs the Timeline Eons app.
You may transfer your events to your desktop computer:
Use the Export button to export your events.
Use this webpage to save the exported events onto your computer.
If you have multiple devices that run Timeline Eons, use the Export button to export your events from one device, then use the Import button to import the events into another device. (Importing events adds new events to existing events. It does not replace existing events.)
No, changes to your timeline are saved immediately after they are made. If the device crashes before saving, you only lose the very last change, not your entire data. In this case, simply relaunch the app and repeat only your last action.
Most events reported missing turned out not to be missing at all. To find an event:
If there are hidden categories, turn them back on.
Go to the search panel and type one or more keywords. For example, to search for the Wright brothers, type "Wright," "brother," or "wright brothers". Found events may not include the search keywords in their titles (the Wright brothers are found under "First Airplane Flight," not under "Wright Brothers").
The best way to find an event is by navigating to the approximate timeline date and then activating the Play mode to watch all the events around that time. For example, to find the Wright brothers' first flight that took place at the beginning of the 20th century, jump to the year 1900 and then activate the Play mode.
If some events still cannot be found, please contact us to add them.
To move custom events from one timeline to another, use the Export button under the Settings tab to export events from the first timeline, then switch timelines and use the Import button to import the same events into the second timeline. The export function works only with custom events. Factory events cannot be exported from the Main timeline.
In general, use multiple timelines only for events that never need to be combined.
To create events that occasionally need to be combined, use a single timeline with multiple categories instead. For example, to add a project to a timeline, add a category with the project's name and then populate this category with the project's events. Toggle this category to display or hide the project.
Known issues get addressed and fixed quickly. However, some issues are unique to the device running the app, and you might be the only user experiencing a particular problem. Please contact us and provide us with the necessary details to reproduce and fix the bug.
For technical support, please contact us via the contact page. This form is manily for leaving comments for other website visitors.