¿Cuántos gobernantes tuvieron los mayas de Palenque?

Which issue led to texas seceding from the union a. the reservation system b. slavery c. war with mexico d. corruption

In a story containing the following points, which would likely occur last?

Can someone answer these question about vasco de gama for me: when? (when did he started his travel)from where & to where? (from where he was and then where he went to)motives? (what was his motives for traveling)accomplishments & discoveries? i will give you 15 star for answering all of these, you so much.