The Day of Ultimate Truth is a holiday on May 7th celebrating Odinism. It is also a day of revealing the truth of the Christian conspiracy to cover up Odinism in an attempt to suppress this religion of kings. It is usually celebrated via proselytizing and informing the general public of the reality of Odinism and the Christian conspiracy against it.
Odinist: Hello there, have you heard of Odinsim?
Oppressed Member of the Future Odinist Proleteriat: No, what is it?
Odinist: The religion of kings, it has been suppressed through the ages because the Christian big wigs did not wish it to spread. Today is the Day of Ultimate Truth, a day dedicated to telling people about it. Would you like a pamphlet?