Move backward or forward

Use the left and right arrow buttons in the toolbar. Each click moves by the unit shown in the current view: one month, one year, or one step in the multi-year view.

Jump to a date

Enter a date in the field between the arrow buttons, then press Return. Chronologia accepts year and month forms as well as era notation, including examples such as:

• 1270
• 1270-02
• Feb 1270
• 44 BCE
• AD 44
• Astronomical year 0 or a negative year

The era badge beside the field shows the notation currently in use.

Change the display

Open View Options in the toolbar to change:

• Calendar — Choose the calendar system used by the main view.
• Polity — Choose a historical polity when using polity civil or regnal year reckoning.
• Follow Polity Calendar — Use the civil calendar historically associated with the selected polity.
• New Year — Follow the polity, use the calendar default, or begin the displayed historical year on 1 January, 25 March, 1 September, or 25 December.
• Week Layout — Choose a supported week cycle. Available choices depend on the calendar.
• Zoom — Switch among Month, Year, and Multi-Year views.
• Display — Switch between Grid and Fasti styles.
• Year Notation — Use CE/BCE, AD/BC, or astronomical numbering where supported.
• Roman Day Names in Julian Calendar — Show or hide Roman day names in the Julian calendar.

The choices open in submenus:

Search

Use the search field at the right side of the toolbar to find historical dates and records. See Search for supported searches and examples.