Bakit mahalagang malaman ang 4R’s?

Which plan proposed to maintain open trade between china and western nations? open door policy national sovereignty missionary diplomacy salutary neglect

Which one of the following is true of jamestown? sir francis drake founded the settlement in 1619. o john smith was responsible for introducing tobacco. o black slaves were brought to jamestown in 1619.

Which events are correlated but do not necessarily have a causal relationship?