アイデアを募る：ideas are sought
（〜を）盛り上げる：boost the mood for ...
Games mascot ideas sought from public
It has been decided that the public will be invited to submit designs for the mascots for the 2020 Tokyo Olympic and Paralympic Games. Ideas for the designs are likely to be widely sought from everyone from children to adults.
When the logos for the Games were chosen, a designer's ideas were initially adopted. But suspicions emerged that the designer might have plagiarized other designs, and so the selection was done over from the beginning. The selection process was criticized for not being open to the public, so to avoid having this kind of thing occur again, it was decided that the general public will also be asked to think about the designs of the mascots.
As mascots contribute to boosting the mood for the Games, hey will attract huge attention. It may be fun for you to think about ideas for the mascots.
幕府を開く：found a shogunate
まっすぐ進む：proceed in a straight line
Map offers insight on Edo Castle's strength
Was Edo Castle really the strongest castle?
A detailed drawing of Edo Castle from around the time it was built by Tokugawa Ieyasu, who founded the Tokugawa shogunate in Edo(now Tokyo) in 1603, has been discovered for the first time.
The place where the castle was built is the location of the Imperial Palace, in which the Emperor lives.
Details of the original castle have been unclear, as there were fires and it was rebuilt. But the drawing shows that the big castle tower was connected to the small one by a fence and other strubtures. There are many open spaces surrounded by walls so enemies could not proceed in a straight line.
Ieyasu built the castle after the death of Toyotomi Hideyoshi. However, the Toyotomi family remained influential in Osaka.
An expert said, "Perhaps[Ieyasu]built the strong castle in preparation for battle with the Toyotomi family."
（The Japan News by The Yomiuri Shinbunより）