Answer:
These 3 things were all just a coincidental alliteration representing what the explorers wanted when searching for new land.
Explanation:
God, I suppose, would be to expand religion. Making others believe what the explorers believe.
Gold.. That's pretty self explanatory. Finding gold was probably #1 on their to-do list.
Glory would result in their expand in empires and gain power over the land.
The Wounded Knee Massacre took place in 1890. This was a confrontation between the US military and the Sioux tribe. This was all caused by the misinterpretation the Ghost Dance, a religious dance done by the Sioux tribe. This was seen as an act of war, causing an attack by the US military on the Sioux tribe. This resulted in the deaths of hundreds of Native Americans.