1) The push for gender equality and women's empowerment has gained momentum worldwide, with increased advocacy for equal rights, representation in leadership positions, and efforts to address issues such as gender-based violence and discrimination.

2) The human brain has a storage capacity equivalent to around 2.5 petabytes, which is roughly equivalent to three million hours of TV shows.

3) The Treaty of Tordesillas, signed in 1494, divided the newly discovered lands outside of Europe between Spain and Portugal, leading to the colonization of the Americas.

4) The Arctic Ocean is the smallest and shallowest ocean, located at the North Pole. It is covered by sea ice for much of the year.