According to eBay, there were only two bids on the historic document, but the competition was enough to bump the sale to just above the asking price of $3 million, i09 notes.

However, when the auction was announced earlier this month, Eric Gazin, president of the Los Angeles-based auction house that handled the sale, speculated the item might triple its opening bid threshold, Fox News reports.

The auction closed Oct. 18.

The handwritten letter, sent to Jewish philosopher Erik Gutkind shortly before Einstein's death, references several philosophical and theological themes including religion and tribalism. The letter also expresses Einstein's belief that God does not exist.