Answer:
the invention of the telegraph !
 
        
             
        
        
        
Hinduism is the oldest religious philosophy still practiced today. And Buddhism made its appearance a few hundred years later, having its roots in Hinduism.
Buddhism and Hinduism are similar in that they both believe in reincarnation.
Buddhism and Hinduism are similar in that they both use meditation.
Buddhism and Hinduism are similar in that they both avoid attachment.  Both Buddhists and Hindus practice non-attachment. This is mainly focused on material things and people. His belief is that attachment to material things will result in reincarnation. What to try to avoid. Therefore, both Hindus and Buddhists try to live spiritually. Avoiding attachment to the material world.
Among the differences that we can point out between these two models of philosophy and religion, it starts at a fundamental point. Hinduism believes in deities, Buddhism does not. In Buddhism, while after death what survives is the mind, in Hinduism, it is the soul.
Furthermore, when in meditation, the Buddhist aims to clear his mind, calming it down and establishing a moment of silence and peace, the Hinduist seeks, in this process, to reach a state of superior, transcendental mind.
 
        
             
        
        
        
This may not be accurate but I think the blues, The name of this great American music probably originated with the 17th-century English expression “the blue devils,” for the intense visual hallucinations that can accompany severe alcohol withdrawal. Shortened over time to “the blues,” it came to mean a state of agitation or depression.Jan 4, 2013
        
             
        
        
        
Ancestors this is a complete guess sorry
        
             
        
        
        
You are right, it is D. Tourism