Dawn of Mana was created on 2006-12-21.
Dawn of Mana happened in 2006.
Mana Mana was created in 1986.
Mana College was created in 1957.
Mana Desam was created in 1949.
Mana Motuhake was created in 1979.
Yes, he did.
You're mixing 'land' and 'mana'. Your 'mana pool' is a count of how much mana you have generated from your resources. Imagine you tap a forest for mana - you now have 1 green mana in your 'mana pool'. Old versions of forests used to actually say that, but it's assumed everyone knows what Basic Land does, it taps for one unit of the pictured mana.So lands generate mana, but so do other cards, like Birds of Paradise, and Dawn's Reflection. They are not implying you fetch land cards from your deck, they are just adding mana to that mana pool, like Basic Land does.So imagine that forest is enchanted with Dawn's Reflection. When you tap the forest for mana, as well as that one green, you add two mana of any colour to your mana pool. That one land is effectively generating three mana, which you can then cast spells with.
Secret of Mana was created on 1993-08-06.
Legend of Mana was created on 1999-07-15.
Mana Mamau was created on 2011-07-07.
Heroes of Mana was created on 2007-03-08.
Mana Māori Movement was created in 1993.