In the case of brown vs. the board of education of topeka, the supreme court ruled that in public schools was unconstitutional.

In the case of Brown vs. the Board of Education of Topeka, the Supreme Court ruled that segregation in public schools was unconstitutional.

Explanation:

Brown v. Board of Education is a Supreme Court ruling published on May 17, 1954, which declared racial segregation in public schools unconstitutional. A complementary judgment on the same case was published on May 31, 1955: the two judgments are, for this reason, also cited as Brown I and Brown II. This ruling is arguably the most important of Warren's court decisions. From a technical point of view, the Brown judgment is applicable only to the public education system of the states; however the ruling in Bolling v. Sharpe, less known and published on the same day as Brown, also extends the obligation to the federal government.

explanation:

japan participated in world war i from 1914 to 1918 in an alliance with entente powers and played an important role in securing the sea lanes in the west pacific and indian oceans against the imperial german navy as the member of the allies.

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.