How Samba influenced by Black culture and Black music

Write about how Samba influenced by Black culture at different time, like in the previous (like slavery) and now.
Definitions
Theme: the unifying subject or idea in a piece of work.
Style: aesthetic values followed in choosing movements or set dance and physical techniques employed.
Aesthetics: a branch of philosophy dealing with the nature of beauty, art and taste and with the creation and appreciation of beauty