The succession marks the end of six decades of rule by brothers Fidel and Raul Castro
Manuel Marrero Cruz named to post by legislative parliament after new constitutional amendment approved in April
New president elected to five-year term with 603 out of 604 possible votes in NA
The event was organised by the Pak-Cuba Parliamentary Friendship Group
Castro always said he did not want a cult of personality
Authorities have arrested dozens, keeping others from marching in Havana
Fidel was an international icon, a fiery apostle of revolution
The crowd chanted "long live the revolution!" and "Fidel! Fidel!"
Castro was perhaps the last of the Cold War warriors
The news of Castro's death drew strong -- and polarized -- reactions across the world