Analytics preferences

Google Analytics runs automatically to help us understand which public Wonders and explorer tools are useful, unless you turn it off or your browser requests no tracking. Google receives a browser identifier, sanitized page locations and allowlisted interaction events. Google may also receive network information such as your IP address when your browser contacts its service.

For signed-in members with analytics enabled, CodexMira associates that browser identifier with verified purchase, credit and billing outcomes so renewals and automatic top-ups can be measured without an open browser. Card details, email addresses, chat questions and answers, personal saved labels, and raw error messages are not included in these analytics events. Advertising features are disabled.

You can turn analytics off here. Turning it off stops new Google tracking, clears Google Analytics cookies on this site and asks the server to revoke the member analytics association. Already-collected reports cannot be removed by clearing browser cookies. Necessary sign-in, payment and operational records remain separate from analytics.

Replit manages its own published-site hosting tracker; this choice also controls the custom events CodexMira sends to that tracker, but does not change Replit's platform publishing settings.

Google's privacy policy

Analytics: on.

Google tracking is disabled here. It runs only on codexmira.com production.

CodexMira
DeepEarlyNeolithicBronze AgeIron Age and ClassicalMedievalEarlyModern

Pentre Ifan

Megalith

Description

Pentre Ifan is a megalith in United Kingdom, Europe. Cadw dates it to c. 3500 BCE. Listed figures include a heaviest stone of 16 tonnes (estimated). Cadw also records: “Chambered tomb.”

The largest dolmen in Wales, its capstone about 16 t on pointed uprights.

Media

AI responses

Guide answers and timeline insights related to this Wonder.

Loading responses…

Bronze Age — Pentre Ifan in context.

Bronze Age, 3,300 BCE to 1,200 BCEDates supported by mainstream archaeology. Natural formations remain undated.Timeline1342223436832352232422221061113133,000 BCE2,500 BCE2,000 BCE1,500 BCE
Heaviest stone16tConfidence: estimated

Claims

Compare the published evidence and its interpretations. “Consensus” records the mainstream account; “Alternative” identifies a competing interpretation, not an equally established conclusion. Estimates and unresolved questions remain qualified in the claim text.

FieldConsensusAlternative
Date

3500 BCE - 3000 BCE

c. 3500 BCE

Cadw
No claims found.
Purpose

Chambered tomb

Cadw
No claims found.
MethodNo claims found.No claims found.
Sources: Cadw

Calculating elapsed time...

Approximate - counted from January 1, 3,250 BCE (UTC). Based on the midpoint of 3,500 BCE - 3,000 BCE; the underlying date is uncertain.

Separate totals since January 1, 3,250 BCE (UTC)
UnitCompleted total
Centuries—
Decades—
Years—
Days—
Hours—

Each row is an independent total of the same span, not a breakdown to add together.

Enter a date of birth to compare.

Account

Loading...