Misc: What title did Zola give to the letter he wrote to the newspaper L'Aurore in 1898?

Questions

who was the eldest member of the beatles?

what was the profession of lancelot 'capability' brown?

with what type of painting was john singer sargent principally associated?

which english king did robert the bruce defeat at bannockburn?

who opened the circus 'the greatest show on earth' in brooklyn in 1871?