In the battlefield of Kurukshetra, Bhishmacharya gave the thousand names of Lord Vishnu.
This became famous as Vishnu Sahasranama.
But as Bhismacharya went on saying these names, all were just listening with eyes closed.
Nobody was writing them down or even memorizing them.
After they opened their eyes, Yudhishtira was the first one to realize this.
He asked: has anyone noted this down?
No.
Yudhishtira asked Krishna: can you please recollect?
No.
Even I was totally absorbed in it.
But Krishna gave a solution.
Sahadeva was wearing a sphatika (crystal).
Sphatika absorbs and stores sound waves around it.
It would have stored the Sahasranama also.
Lord Krishna told Sahadeva to meditate upon Lord Shiva.
When he did that, he could hear the names ‘recorded’ in the sphatika being played back.
Then they were noted down.
The same were made eternal by Sage Vyasa in his Mahabharata.

Knowledge Bank

The Dice Game was Played Twice

The game of dice between the Pandavas and the Kauravas was orchestrated by Duryodhana, who envied the Pandavas' power after their Rajasuya Yagna. The first game, played in Hastinapura with Shakuni's deceitful help, resulted in Yudhishthira losing his kingdom, wealth, brothers, and Draupadi. After Draupadi's humiliation, Dhritarashtra intervened, returning their wealth and freedom. A few months later, Duryodhana convinced Dhritarashtra to arrange a second game. During this time, the Kauravas plotted to ensure severe consequences. The second game's terms dictated that the losing party would be exiled for 13 years, with the last year incognito. Yudhishthira lost again, leading to the Pandavas' exile. The short gap between the games allowed tensions to build, furthering the rivalry between the Pandavas and Kauravas. These events were pivotal in setting the stage for the Kurukshetra war, showcasing the Kauravas' treachery and the Pandavas' resilience. The repeated losses and Draupadi's humiliation fueled the Pandavas' desire for justice and revenge, ultimately leading to the great war depicted in the Mahabharata.

Dhanurveda is a Upaveda of which Veda?

Rigveda.