Explanation

antonym of facilitate is Hinder 

Explanation

Motorola was the first company to produce a handheld mobile phone.

On April 3, 1973, Martin Cooper, made the first mobile telephone call from handheld subscriber equipment.

Explanation

Itinerant travels from place to place 

Explanation

In the Format Cells box, click the Number tab. In the Category list, click Date, and then choose a date format you want in Type.

You can adjust this format in the last step below.

Go back to the Category list, and choose Custom.

Explanation

A unique constraint is a rule that forbids duplicate values in one or more columns within a table. Unique and primary keys are the supported unique constraints.

Explanation

Therefore, for Clausewitz, grand strategy is the totality of the state's means of political intercourse directed toward the object(s) of policy.

The nation-state is the foundation of international political intercourse and, more generally, communication.

Explanation

But there is also a rule that says it's a false start if a runner leaves within 0.1 seconds AFTER the gun sounds

The idea being that nobody could possibly react that quickly to the gun.

 His reaction time was measured at 0.099 seconds.

Explanation

Explanation

WhatsApp allows users to send text, voice messages and video messages, make voice and video calls, and share images, documents, user locations, and other content. 

Initial release date: November 2009

Original authors: Brian Acton, Jan Koum

Yahoo was founded by Jerry Yang and David Filo in January 1994 and was incorporated on March 2, 1995.

Founded: January 1994

Headquarters: Sunnyvale, California, United States

Gmail is a free email service provided by Google.

Date launched: April 1, 2004

Created by: Paul Buchheit

Explanation

George F. Kennan, a career Foreign Service Officer, formulated the policy of “containment,” the basic United States strategy for fighting the cold war (1947–1989) with the Soviet Union.