Mayan Calendar

Origin
As far as the Mayan Tribe went there were actually several types of Mayan Calendars however the artifact is one that is considered a Long Count as it was said to depict the end of the world. The complete destruction of the Mayan people was mostly done by the European conquest however several leaders activated the Mayan Calendar hoping for salvation was rewarded with an inescapable prison.

Effects
Agent Lockhart recounted that in her prison she was in an office, not unlike Agent Nielsen's at Warehouse 13, where she was doing paperwork on collected artifacts. There was no way to tell that time wasn't moving and she didn't feel like she had been trapped anywhere. Thinking back on it, it felt like any other day. Agent Torres refused to disclose his time within the Calendar.

Collection
The Calendar was discovered by Agents Nielsen, Torres and Lockhart however while trying to figure out how to move the artifact back to the Warehouse it was activated. Agents Torres and Lockhart were doomed to be trapped but managed to prevent Agent Nielsen from joining them.