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The four main Vedic texts are Rig-Veda, Sama-Veda, Yajur-Veda, and Atharva-Veda.
1.  Rig-Veda "knowledge of the hymns of praise" 1,017 hymns
2. Sama-Veda "knowledge of the melodies" 1,549 hymns
3. Yajur-Veda "knowledge of the sacrificial formulas" 1,017 hymns
4. Atharva-Veda "knowledge of the magic formulas" 730 hymns

"The practice of indulgences was a payment to the catholic church that purchased and exemption of punishment for some types of sins."
In other words you could pay the church in money so you wouldn't have to pay any punishment for your sins.

I think that Martin Luther objected to indulgences because you are not owning up to your own mistake you are just paying money to forget about them. The act of sin should only be forgiven by God.

Haji is when a Muslim has been to Mecca as a pilgrim.

Here is a step by step guide to Hajj
1: Points of entry
2: Perform tawaf
3: Perform saey
4: Departure to mina
5: Day at arafat
6: Night at muzdalifah
7:Devil stoning in Mina
8: Animal Sacrifice
9: Hair trim and remove pilgrims ihram
10: Return to Kaaba for tawarf and saey
11: Return to devil stoning
12: Farewell tawaf