What was the controversy over chads ⁉️

Which of these did the soviet union do in 1961? it built a wall through berlin to keep people from moving to the west. it used force to destroy a wall the united states had built in berlin. it convinced the british and french to merge their zones in berlin with the soviet zone. it threatened to bomb berlin if the united states did not leave within 30 days.

Which part of the map is the subregion europe

Plz . explain what shopping was like in london during the early 1900s. how does this differ from the modern shopping experience?