What characteristics did the early Roman Calendar in the Islamic calendar share?

Lunar cycle and days of month.

Explanation:

The use of lunar cycle is the similarity which is present in both early Roman Calendar and Islamic calendar. In early roman Calendar as well as the Islamic Calendar, they use the shapes of moon for the starting and ending of the month. The first month of both Calendars start with the sign of new crescent moon. In both calendars, each month consist of 29 to 30 days because moon completes its cycle in 29 to 30 days.

the berlin blockade was an international crisis that arose from an attempt by the soviet union, in 1948–49, to force the western allied powers (the united states, the united kingdom, and france) to abandon their post-world war ii jurisdictions in west berlin. in march 1948 the allied powers decided to unite their different occupation zones of germany into a single economic unit. in protest, the soviet representative withdrew from the allied control council. coincident with the introduction of a new deutsche mark in west berlin (as throughout west germany), which the soviets regarded as a violation of agreements with the allies, the soviet occupation forces in eastern germany began a blockade of all rail, road, and water communications between berlin and the west. on june 24 the soviets announced that the four-power administration of berlin had ceased and that the allies no longer had any rights there.

answer; (c) slaves brought to the americans from africa;